Classifications

• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F1/00—Treatment of water, waste water, or sewage
  • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L67/00—Network arrangements or protocols for supporting network services or applications
  • H04L67/01—Protocols
  • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F1/00—Treatment of water, waste water, or sewage
  • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F1/00—Treatment of water, waste water, or sewage
  • C02F1/30—Treatment of water, waste water, or sewage by irradiation
  • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F1/00—Treatment of water, waste water, or sewage
  • C02F1/72—Treatment of water, waste water, or sewage by oxidation
  • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F1/00—Treatment of water, waste water, or sewage
  • C02F1/72—Treatment of water, waste water, or sewage by oxidation
  • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
  • C02F2103/42—Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F2209/00—Controlling or monitoring parameters in water treatment
  • C02F2209/02—Temperature
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F2209/00—Controlling or monitoring parameters in water treatment
  • C02F2209/06—Controlling or monitoring parameters in water treatment pH
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q2209/00—Arrangements in telecontrol or telemetry systems
  • H04Q2209/10—Arrangements in telecontrol or telemetry systems using a centralized architecture
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q2209/00—Arrangements in telecontrol or telemetry systems
  • H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q2209/00—Arrangements in telecontrol or telemetry systems
  • H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
  • H04Q2209/82—Arrangements in the sub-station, i.e. sensing device where the sensing device takes the initiative of sending data
  • H04Q2209/823—Arrangements in the sub-station, i.e. sensing device where the sensing device takes the initiative of sending data where the data is sent when the measured values exceed a threshold, e.g. sending an alarm

Definitions

• the invention relates to a method of managing a pool of individual pools. It also relates to a means of local control of an individual pool and a management server of a swimming pool park. Finally, it concerns a management system of a swimming pool park.
• the invention is based on a method of managing a swimming pool park, characterized in that it comprises the following steps:
• Figure 1 schematically shows a management system of a pool of pools according to one embodiment of the invention.
• FIG. 2 diagrammatically represents a means of local control of a swimming pool according to the embodiment of the invention.
• FIG. 3 diagrammatically represents a means for regulating the local control means of a swimming pool according to the embodiment of the invention.
• FIG. 4 shows in another form a device for managing an individual swimming pool incorporating a local control means according to the embodiment of the invention.
• the concept of the invention consists in connecting several individual pools to a management center, which exchanges parameters and data relating to each pool with a means of local control of the water of each pool.
• This approach allows a centralized and automated pool supervision, which can be proposed by a professional, which allows to improve the monitoring and management of each individual swimming pool of a pool park, regardless of the distance from these pools individual, which can for example be separated by more than one kilometer or more than ten kilometers, without limit on their distance.
• This approach provides a significant improvement over the semi-automatic management of each isolated pool, under the sole supervision of its owner often not very expert in this area.
• FIG. 1 represents a swimming pool park 10 according to the invention, in which each swimming pool is linked by a communication network 20 with a management center 30 of this swimming pool park, which may include a central remote server equipped with software management of the swimming pool park, as well as monitoring equipment 40 and 40 'and an information base 50, which may consist of a weather server for example.
• a management center 30 of this swimming pool park which may include a central remote server equipped with software management of the swimming pool park, as well as monitoring equipment 40 and 40 'and an information base 50, which may consist of a weather server for example.
• the pool park 10 includes four pools 11, 13, 15, 17, type discovery private pool, installed in a primary or secondary residence, or a hotel, a campsite, a sports center, leisure, fitness, etc.
• Each pool comprises respectively a local control means 21, 23, 25, 27 of the water quality, provided with analysis means and processing means, the operation of which will be described later.
• the park shown comprises only four pools but the invention can naturally be applied to any number of pools, greater than or equal to two.
• Each local control means 21, 23, 25, 27 comprises signaling means, respectively 121, 123, 125, 127.
• Pools and control means can be structurally different from one pool to another.
• the swimming pool park 10 constitutes a set of heterogeneous elements.
• all the control means 21, 23, 25, 27 are connected to the same communication network 20, for example and preferably an Internet-type public network.
• control means 21, 23, 25, 27 are connected to a management center 30 via this communication network 20.
• the definition of the pool park results in particular from individual subscriptions to the management center 30 and is translated at least by the presence of identifiers of each local control means or each pool in a memory
• the management center 30 In addition to an identifier of each local control means 21, 23, 25, 27 of the pools 11, 13, 15, 17 of the pool park 10, the management center 30 has in memory precise data on the location of the pool, its dimensional characteristics, the characteristics of the local control means and, possibly, it also has historical data on the physico-chemical or bacteriological state of the water and / or on maintenance operations.
• a first tracking device 40 is also connected to the communication network 20. This tracking equipment is used by a first professional pool maintenance, called “maintenance agent” or “pool” or even an owner interested and supervising his pool, that of his neighbors, his family, having entered into a maintenance contract with some of the pool owners of the park, for example those of the first pool 11 and the fourth pool 17.
• a second tracking equipment 40 ' is used by a second pool maintenance professional who has entered into a maintenance contract with the owners of the second pool 13 and the third pool 15.
• Each tracking device 40, 40 ' is known both from the management center 30 and the control means 21 and 27, 23 and 25 of the subset concerned, at least by sharing identifiers.
• a tracking device comprises a human-machine interface and has in memory, like the management center 30, precise data on the location of the pool, its dimensional characteristics, the characteristics of the local control means and possibly also has historical data on the physico-chemical or bacteriological state of the water and / or on maintenance operations. These data are preferably recorded by the professional in his monitoring equipment and then communicated to the management center.
• a local control means may also directly warn the corresponding tracking equipment 40, 40 'and / or the management center 30 during a serious event, and in particular when crossing predetermined thresholds which may lead, for example, to a passage in a degraded state of the water of the corresponding swimming pool.
• the tracking equipment and the management center can in fact be confused, their functions being fulfilled in such a case by the same remote device as a remote server.
• a remote device for example, in a pool park with relatively few individual pools, only one installer manages the pool park. Its monitoring equipment then becomes "management center" within the meaning of the invention, and it contains an algorithm able to manage the pools of the park.
• management center within the meaning of the invention, and it contains an algorithm able to manage the pools of the park.
• the centralized management system of a swimming pool park allows the implementation of the following step of a pool park management method:
• the method of managing a swimming pool park of the invention comprises transmitting the following measurements to the central server of the management center 30: - measuring the temperature of the water;
• the management center 30 can also be informed of the water filtering periods provided for each pool of the park, remember these periods, receive any modification that would be made locally at the pool, by means of local control of water for example. It may comprise a step of measuring the state of the filtration, for example by pressure or flow. These measurements or data significant for the management of the water quality of a swimming pool may be transmitted to the management center periodically, according to a period programmed in the local control means of each pool, this period being able to be modified locally or on request from the management center. As a variant, these measurements or data may be transmitted on request from the management center, or transmitted by the local control means following a particular situation, as a particular measurement, for example a turbid water situation.
• These different measurements and data gathered on the remote server of the pool park can be presented to a pool / supervisor by a human machine interface allowing the visualization of all these data for each pool, in a single table for example.
• the values coming out of predefined ranges can be highlighted, for example by a particular color code, in order to immediately visualize any abnormal situation, for example corresponding to a cloudy or cloudy water becomes cloudy.
• Alarms can be triggered automatically for these measurements leaving predefined ranges.
• a supervisor can initiate actions remotely to act on the various means of pool control to improve their water management, for example by triggering a filtration of water, adding a treatment product. These actions can be automatic, by transmitting a command from the remote server by means of local control of a pool, which implements the appropriate actions.
• the management method of a swimming pool park also allows a local control means of a pool that detects the appearance of a degraded state of the pool water to immediately transmit the information at the management center. It further comprises an automatic processing step following the degraded state of the pool water, implemented by a control of the management center and / or by a pre-programmed regulation in the control means.
• the pool park management method implemented by the software means of the management center also comprises a method for determining the endangered pools, that is to say the pool water is likely to pass into a degraded state.
• This process uses a risk criterion. It may also include the use of an expert system, also incorporating terrain data and / or historical data. Some pools can be known to have a greater sensitivity due to a particular constitution or because of the control means used or without any particular explanation but simply because of historical incidents.
• the predetermined threshold of risk can be modulated according to this sensitivity specific to each pool and acquired for example automatically using the expert system.
• the method for determining endangered pools takes into account the degraded state of neighboring pools and / or the like to deduce a probability that this change of state may occur on another pool of the park.
• This approach is particularly relevant when the change in the degraded state of the pool water is caused by pollution by acid rain or other local weather phenomenon, which can contaminate in the same way any pool placed in the same conditions.
• an alert message is displayed on a screen of the management center and / or on a screen of the local control means of the pool.
• a LED, TV, tablet type iPad, LCD or OLED display can be used.
• the local control means of the pool concerned then implements appropriate preventive treatment.
• Preventive treatment can also be implemented remotely by the management center. In both cases, the local control means of the threatened pool receives a preventive treatment command via the communication network 20.
• An option of the local control means allows the owner to accept or not a direct activation of the local control means by the management center.
• Preventive or curative treatment may consist of the injection of certain treatment products into the pool, the closing of a mobile screen protecting the outdoor pool, or any other modification of the state of the pool.
• the management center 30 can intervene on the local control means of a swimming pool by modifying setpoint values and / or maximum values and / or minimum values of magnitudes.
• the messages may be sent by the management center 30 in the form of alphanumeric strings.
• at least part of the message is stored in a memory of the control means.
• the content of a SIGN signal is fully pre-recorded in the local control means 21, as for example the preventive processing algorithm.
• the owner simply validates the start of the preventive treatment by pressing a key.
• the management center then simply sends a code causing in particular the display of the alert signal.
• An example of an alert signal, pre-register partially, is as follows:
• the management center simply sends to the local control means the coded content of the variables [Type_Menace] and [Type_Treatment].
• the local control means contains in memory the different alphanumeric strings corresponding to the different codes and displays the message corresponding to the code received.
• the hardware and software resources of the management center allowing the application of the management method described above also allow the storage of a correspondence table between identifiers of each control means,
• the invention is independent of the nature of the communication network. This can be homogeneous or heterogeneous. For example, in the first case, all communications are provided over the Internet or all communications are provided by sending SMS, while in the second case some communications can be provided by the Internet while other communications can be provided by sending SMS. It is also possible to send a message directly to the owner of a pool by SMS digital voice mail or voice messages.
• the local control means 21 of a pool 11 will now be explained.
• FIG. 2 shows an individual pool installation using the method according to the invention.
• the installation comprises a basin 11 and a local control means 21 comprising means for analyzing and regulation 3 of the quality of the water in the pool and connected to the pool by an extraction pipe 4 and a delivery pipe 5.
• the local control means 21 also comprises supervisory means 6 communicating with the regulating means 3 by a first connecting means 7, such as a set line, and by a second connecting means 8, such as a line regulatory information.
• the first connecting means and the second connecting means are advantageously made by bidirectional radiofrequency communication if the regulation means and the supervision means are physically distant by several meters.
• the supervisory means 6 communicate with the remote server of the management center 30, common to several installations and dedicated to monitoring the park of individual swimming pools, as explained previously, by the communication means 20, such as a network. Internet.
• the installation may be linked to another remote server, not shown in Figure 2, which may be a weather server.
• the local control means 21 comprises four actuators connected to the water circulation circuit going from the extraction pipe 4 to the discharge pipe 5, represented in FIG. 3.
• a first actuator 12 is for example a metering pump, allowing the injection of chlorinated products.
• a second actuator 16 is for example an electrolysis device.
• a third actuator 18 is for example an ozonator. Alternatively, the third actuator is an ultraviolet light device.
• the fourth actuator 24 is a motor acting on a circulation pump. The water coming from the extraction pipe is thus pushed back into the basin by the discharge pipe. Alternatively, others actuators not shown can be used to interact with a heating device, valves (multi-channel or single).
• the actuators are powered by a power supply line 25, for example from the AC mains, provided with means of voltage step-downs and / or differential protection not shown.
• the actuators 12, 16, 18, 24 are controlled by control lines, respectively referenced 120, 160, 180, 240 for the actuators.
• the control lines come from a microcontroller 35.
• a physico-chemical sensor assembly 36 comprises a first probe 361, for example a pH probe, a second probe 362, for example an optical probe or a chlorine probe, and a third probe 363, for example a water temperature probe. Other probes can also be used, for example for the measurement of flow and / or pressure of water or for the measurement of bacterial concentrations.
• These probes are connected to the microcontroller by measurement lines, respectively referenced 364 to 366 and perform the function of measurements of quantities representing the quality of the water of the basin 11 and form a means for analyzing the quality of the water.
• the microcontroller 35 executes a control program of the multi-variable servo type capable of satisfying a water quality criterion by driving the actuators using the control lines from data collected on the measurement lines.
• Any technique in the automatic domain can be used in the control program, including expert system rules or fuzzy logic.
• a PID (Proportional Integral Derivative) type of servocontrol is used and the quality criterion is the setpoint of the PID servocontrol.
• the quality criterion is the setpoint of the PID servocontrol.
• the quality criterion is satisfied if the actual value differs very little from the set value, for example to less than 5% or even less than 2%. Beyond a certain difference with the set point, the quality of the water is considered to be degraded.
• the supervision means 6 and the regulation means 3 are represented as physically different. This is indeed the case if a first control device comprises only the supervision means, while a control device comprises only the control means.
• the supervisory means but also a part of the regulation means, and in particular the microcontroller 35 are grouped together to limit the hardware and software hardware resources required by the supervisory and control means in a common logic and calculation unit. not shown. In all cases, these two functions of regulation and supervision participate in the local control means 21 of the pool 11.
• the local control means 21 of the pool 11 implements a method for controlling the water quality of an individual swimming pool comprising control means controlling actuators acting on physicochemical parameters of the water to satisfy a water quality criterion and comprising supervision means limiting the action of the actuators by operating limits set at different operating parameters or data, mainly the data representing the quality of the pool water.
• the operating parameter is for example the time and its limits then correspond to at least one authorized time slot.
• Another operating parameter is for example the daily quantity, or hourly, or for a certain time range, quantity of products. chlorinated, of which a maximum authorized quantity is predefined. Equivalently, a maximum quantity limit of any treatment product can be predefined. These limits are not exceeded, even if the regulation provided by the local control means 21 does not achieve the given instruction. In the latter case, the anomaly can come from a measurement error, for example following a failure of a measuring probe, and the predefined limits make it possible to avoid unnecessarily and sometimes dangerously spilling a large quantity of product treating . Otherwise, the local control means of the pool can move to another mode of operation more suitable, with other maximum values for the operating parameters, which allows to achieve the desired water quality.
• a first mode is more limited and more economical in energy expenditure and / or in treatment products that a second mode less limited.
• the local control means 21 of the pool can automatically cause the passage in the second mode of treatment although the water quality criterion is satisfied in the first mode of treatment, in order to anticipate a future evolution of the water quality of the pool.
• the operating limits are determined by an installer or are transmitted remotely by the management center 30. These limits can be automatically determined according to the use of a swimming pool, taking into account the number of bathers, by a sensor. presence to calculate its use.
• a very low use corresponds for example to less than one user for 40 cubic meters of basin. Lack of use or very low use can also be characterized by a state of total rest (or near-rest) of water in the basin. Normal use corresponds, for example, to a user density that is greater than the previous case but remains less than one user per 10 cubic meters of pool.
• These density thresholds can be parameterized according to the temperature of the water, cold water being more tolerant to a large number of users, and / or depending on the agitation of the water. caused by users. They can also integrate historical data, and / or be determined by an expert system housed in the management center 30.
• the information of a weather server is taken into account to determine the mode of operation of the local control means of the pool.
• information transmitted to the control means such as a significant risk of storm, for example, causes a change of mode, for example a transition from the average processing mode to the strong processing mode.
• a stormy weather easily causes a change in the state of water by promoting bacterial proliferation.
• This meteorological information can be transmitted directly by a specific weather server 50 or by the server of the management center 30 of a swimming pool park which also centralizes the meteorological data management.
• FIG. 4 shows in another form a device for managing an individual swimming pool incorporating a local control means according to the invention.
• the management device 1 of the pool essentially comprising the pool local control means explained above, comprises the sensors or probes 361 -363 mentioned above, which measure certain quantities representing the quality of the water, as per example its pH, its content of chlorine or salt, its temperature, or even complementary sensors 367 measuring quantities of the external environment, such as the temperature of the air. Note that some of these quantities may alternatively be estimated by software and not measured.
• These probes communicate with a central unit 34, possibly via an intermediate box 32 provided with a wireless communication means with the central unit 34, which comprises hardware and / or software means, comprising, for example, the microcontroller 35, to implement the regulation of the water quality values as explained above.
• the intermediate housing 32 may further perform certain functions such as sampling, standby, etc., to optimize its performance and autonomy.
• the central unit 34 controls the actuators, pumps and other mechanical means to initiate actions consisting for example of a recirculation of the water through a filter 33, or the injection of treatment products of acid type, chlorine , bromine, ozone, active oxygen or in production of UV, disinfectant electrolysis such as chlorine production by salt electrolysis.
• the central unit 34 can automatically maintain the quality of the water at a chosen level with optimized consumption.
• the principle described above illustrates the normal operation of the local control means of a swimming pool, which we will call "mode of operation" thereafter. In this operating mode, the management of the pool is automatic. However, a user retains limited access to certain setpoint settings, in order to adapt the behavior of the pool to its particular use.
• This interaction of the user with the local control means of the pool is predefined and authorized by the mode of operation of the local control means of the pool.
• This interaction of the user on the local control means of the swimming pool can be done by means of a remote control 37, which communicates advantageously by a wireless communication means 38 with the central unit 34, which allows to dispose in the immediate vicinity of the pool, while the central unit 34 is in a closed annex.
• the swimming pool management device is connected by the communication network 20 to a remote central server of a management center 30, which may be a simple computer.
• the local pool control means 39 is locally connected to the Internet, either by a wired connection via a modem, or by a contactless connection type wifi.
• an intervention more than to connect its portable object by means of local control of the swimming pool, by indicating the corresponding swimming pool model or by choosing the portable object corresponding to this model, and all the predefined and prerecorded initialization values for this model of pool are automatically transmitted by means of local control.
• the installer only has to make the final necessary adjustments if the model chosen is not suitable for the particular pool. This results in a significant gain in intervention time, while greatly reducing the risk of error.
• the management center 30 of the swimming pool park implements a step of automatic detection of a certain number of maintenance operations or more generally of necessary interventions on certain pools of the park, which require the movement of pools. a maintenance agent. It can then advantageously favor the realization of these operations by the following actions:
• the central server can even include a maintenance tour optimization software, offering an optimal tour for each maintenance agent, taking into account for example the geographical location of the pools concerned, the nature of the operations of necessary maintenance, qualification and availability of each maintenance agent ...
• the management center can also include a management software of its own organization, performing certain calculations of the quality of its interventions by taking into account the response time from the moment of the detection of the need for maintenance, the time intervention and the efficiency of the operations carried out. It is also possible to perform these statistics by maintenance agent to assess the individual performance of each of them, to provide relevant training, more generally to effectively assist the management of Human Resources Pool.
• centralized management of a pool of pools provides additional opportunities for intelligent management of critical resources, such as electricity, water and even treatment products.
• critical resources such as electricity, water and even treatment products.
• the management center may provide for an emergency shutdown mode, or even a low consumption mode, of the entire park or part of the park's pools located in the area concerned, thereby saving a significant amount of electricity.
• the overall electricity consumption of individual pools in a given territory represents a significant total.
• This emergency mode triggered by the management center 30 is automatic and priority over local commands that would be performed by the local control means of a pool, or by its user or a maintenance agent.
• This principle applies in a similar way to the management of water or the management of any other resource used by an individual pool.
• the management center puts the pool park in its operating mode usual.
• the management center may force the pools of the park concerned to pass emergency in a mode of operation with high power consumption.

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• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Health & Medical Sciences (AREA)
• Computing Systems (AREA)
• Water Supply & Treatment (AREA)
• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Hydrology & Water Resources (AREA)
• Life Sciences & Earth Sciences (AREA)
• Environmental & Geological Engineering (AREA)
• General Health & Medical Sciences (AREA)
• Medical Informatics (AREA)
• Signal Processing (AREA)
• Telephonic Communication Services (AREA)
• Massaging Devices (AREA)
• Treatment Of Water By Oxidation Or Reduction (AREA)

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• 2010
  • 2010-07-09 EP EP10739875A patent/EP2452507A2/de not_active Withdrawn
  • 2010-07-09 WO PCT/EP2010/059914 patent/WO2011004015A2/fr not_active Ceased
  • 2010-07-09 US US13/383,134 patent/US20120158336A1/en not_active Abandoned
  • 2010-07-09 BR BR112012000341A patent/BR112012000341A2/pt not_active Application Discontinuation
  • 2010-07-09 AU AU2010270150A patent/AU2010270150A1/en not_active Abandoned

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