CN106122828B - Desk lamp with heat utilization function - Google Patents
Desk lamp with heat utilization function Download PDFInfo
- Publication number
- CN106122828B CN106122828B CN201610477321.XA CN201610477321A CN106122828B CN 106122828 B CN106122828 B CN 106122828B CN 201610477321 A CN201610477321 A CN 201610477321A CN 106122828 B CN106122828 B CN 106122828B
- Authority
- CN
- China
- Prior art keywords
- relay
- lamp
- cup
- lamp stand
- switch device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/40—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea
- A47J31/404—Powder dosing devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/0024—Household or table equipment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
This patent application discloses a kind of desk lamps with heat utilization function, after opening desk lamp, it can be according to the water level in the cup on Bulb holder of table lamp automatically from pouring in water receiver into cup, and when pouring from trend cup, using the heat of the water in outlet pipe, come trigger second switch device control repository discharge port opening and closing, to realize the automatic coffee making of drink.
Description
Technical field
The present invention relates to desk lamp technical fields, and in particular to a kind of desk lamp with heat utilization function.
Background technique
Desk lamp is common lamps and lanterns in people's daily life, is mainly used for environment, the primary structures of desk lamp such as read-write and includes
Lamp holder, lamp stand, lamp cap and lampshade, current desk lamp have diversified function mostly, such as have eye-protecting function, connect with USB
Mouthful, can telecommunication, intelligent control etc..But with the improvement of people's life quality, it is intended that it is a kind of it is more succinct, comfortable,
Intelligentized life, such as it is intended that when opening desk lamp read-write the dusk, can with one glass of unlatching automatic coffee making of desk lamp it is dense
The drink of Yu Qingxiang is drunk for people, can be lower glass of automatic coffee making after having drunk one glass, is left the bed again without people manually
It brews, when people close desk lamp during sleep, brewing for drink can be ended automatically with the closing of desk lamp, but the prior art
In, the cup that can be poured from trend cup and trickle down particle drink into cup simultaneously not yet appears in the newspapers.
Summary of the invention
The invention is intended to provide one kind to pour automatically into cup, and can be simultaneously into cup unrestrained automatically
The desk lamp with heat utilization function of grain drink.
The desk lamp with heat utilization function in this programme, the desk lamp with heat utilization function, including lamp holder, setting
Lamp stand, the lamp cap on lamp stand top is arranged in and is located on lamp cap lampshade on lamp holder top, set on the top of the lamp holder
The second mounting table is set, the holding water cup on the second mounting table is equipped at the rim of a cup of the cup and extend into going out inside cup
Water pipe, is equipped with solenoid valve in the outlet pipe, and the solenoid valve passes through the automatic draining circuit control being arranged in pedestal
Opening and closing is equipped with the thermistor of negative temperature coefficient on the outlet pipe, and the thermistor is connect with a second switch device,
The second switch device is concatenated with a third relay, the normally-closed contact of the third relay be connected to the first electromagnet and
On the circuit of second electromagnet, it is equipped with the repository for holding particle drink in the top of the cup, the repository
Lower part is provided with discharge port, and the first electromagnet is arranged in the side of the discharge port, is equipped with groove in the other side of the discharge port,
A tension spring is equipped in groove, the end of tension spring is equipped with a baffle, and the side of the baffle is extend into the groove, the baffle
The other side be arranged the second electromagnet.
Illustrate: second switch device of the present invention is connected in gating for low level, high level cut-off.
It the principle of the present invention and has the beneficial effect that: when the desk lamp of this programme is not used, in the first electromagnet and the second electricity
Under the magneticaction of magnet, baffle will block the discharge port of repository, and the particle drink in repository is not fallen out.
When using the desk lamp of this programme, outlet pipe in advance with the reservoir that is contained with hot water, automatic draining circuit control
Solenoid valve processed is opened, and hot water flows into cup from outlet pipe, during hot water flowing, due to being provided on outlet pipe
Thermistor, and the thermistor of this programme is negative temperature coefficient, therefore the resistance value of thermistor will reduce, and makes second switch
The input terminal of device is low level, the conducting of second switch device, and third relay obtains electric, and the normally-closed contact of third relay disconnects, and makes
The circuit of first electromagnet and the second electromagnet disconnects, and two electromagnet are not charged, at this point, baffle will be made in the pulling force of tension spring
Discharge port is opened to groove contract with lower, particle drink drops down onto cup from discharge port automatically, completes the automatic punching of drink
Bubble.
The solution of the present invention can not only realize the automatic coffee making of drink, while the heat of water in outlet pipe is utilized as heat
Second switch device is triggered in source, to realize the automatic dispensing of particle drink.
Further, automatic draining circuit of the present invention includes power unit, Electromagnetic Valve Circuit and control loop, the power supply unit
It is respectively Electromagnetic Valve Circuit and control loop power supply, the control loop includes the first detection electricity for detecting high water level
Pole, the second detecting electrode for detecting low water level, position lower than the auxiliary electrode of the second detecting electrode, first switch device and with
First switch device concatenation the first relay, first detecting electrode, the second detecting electrode and auxiliary electrode respectively with it is described
The connection of first switch device, is equipped with the second relay, the first normally opened contact of second relay in the circuit of the lamp cap
It is concatenated with first switch device, the first normally opened contact of first relay is serially connected in Electromagnetic Valve Circuit, the first relay
First normally-closed contact is concatenated with the second detecting electrode.
The working principle of automatic draining circuit of the invention is: due to being provided with the second relay in the circuit of lamp cap,
The normally opened contact of second relay is concatenated with first switch device, thus when people open desk lamp when, the second relay obtain it is electric, second
The normally opened contact of relay is attracted, simultaneously if water level in cup in the second detecting electrode hereinafter, first switch device
Input terminal input low level, first switch device will be connected, since the first relay is concatenated with derailing switch, the first relay
Device obtains electric, the first normally opened contact actuation of the first relay, the first normally-closed contact disconnection of the first relay, due to the first relay
First normally opened contact of device is serially connected in Electromagnetic Valve Circuit, therefore solenoid valve is opened and starts to discharge water into cup.
When the water level in cup reaches the bottom end of the first detecting electrode, led between the first detecting electrode and auxiliary electrode
Logical, the input terminal input of first switch device will be high level, the cut-off of first switch device, the first relay electric-loss, the first relay
First normally opened contact of device disconnects, and solenoid valve, which is closed, to be stopped discharging water, and the first normally-closed contact of the first relay is attracted.It is fallen in cup
After full water, when people read and write under desk lamp, the drink in cup can be quoted at any time.After drink in people's drinking water glass,
If water level does not drop to the second detecting electrode hereinafter, the first normally-closed contact of the first relay is concatenated with the second detecting electrode,
The input terminal input of first switch device is high level always, and first switch device ends, and solenoid valve does not discharge water.
After people finish off the drink in cup, because not only water level drops to the second detecting electrode hereinafter, therefore but also can weigh
Multiple above-mentioned steps are left the bed the trouble to pour manually in this way, eliminating people, be will not influence from discharging water in water receiver into cup
The read-write of people provides comfortableization, the experience of intelligentized household for people.
Further, strainer is equipped in the discharge outlet.Strainer is used to filter out the impurity in particle drink.
Further, the limited block that limit slippage door opens amplitude is equipped in the repository.Limit is set in repository
Position block, is all consistent, it is ensured that the drink amount fallen from repository every time is all with the amplitude for guaranteeing that each sliding door is opened
It is consistent.
Further, lamp stand is hollow, and the outlet pipe passes through the lamp stand, and the thermistor is located in lamp stand, institute
The connection line for stating thermistor, second switch device, third relay and the first electromagnet and the second electromagnet is respectively positioned on lamp
In bar.Such design avoids the rambling placement of route so that each route concentrates in hollow lamp stand, influences
The beauty of whole desk lamp.
Further, it is equipped with external screw thread on the lamp stand, is provided with internal thread hole, the lampshade and institute in the middle part of the lampshade
State lamp stand threaded connection, and the lampshade turned downwards along the external screw thread on the lamp stand after can cover cup.Due to lamp
Cover is threadedly coupled with lamp stand, therefore lampshade can turn downwards along the external screw thread of lamp stand, and after turning downwards, lampshade can be covered
Water receiver and cup, play the role of heat preservation for water receiver, for the cup of not lid, can prevent dust etc.
Sundries drops into cup.
Detailed description of the invention
Fig. 1 is the schematic front view of the embodiment of the present invention.
Fig. 2 is the schematic diagram of the automatic draining circuit of the embodiment of the present invention.
Fig. 3 is the sectional view of the repository of the embodiment of the present invention.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail:
Appended drawing reference in Figure of description 1 includes: lamp holder 1, lamp stand 2, lampshade 3, outlet pipe 4, the second mounting table 5, storage
Sundries 6, cup 7, thermistor 8, strainer 9, the first electromagnet 10, the second electromagnet 11, groove 12, tension spring 13, limited block 14.
The appended drawing reference of Figure of description 2 includes: solenoid valve YV, the first detecting electrode A, the second detecting electrode b, auxiliary electricity
Pole E, the first normally opened contact K11 of the first relay, the first relay the second normally-closed contact K12, first switch device
TWH8751, first resistor R1, second resistance R2,3rd resistor R3, the first normally opened contact K21 of the second relay, the first relay
Device K1, diode D, filter capacitor C, transformer T, fuse FU, firewire N, zero curve L.
As shown in Fig. 1, the present embodiment has the desk lamp of heat utilization function, including lamp holder 1, setting on 1 top of lamp holder
Lamp stand 2, the lamp cap on 2 top of lamp stand is set and is located on lamp cap lampshade 3.In the present embodiment, set on the lamp stand 2
There is external screw thread, internal thread hole is provided in the middle part of lampshade 3, lampshade 3 is to be threadedly coupled with lamp stand 2, and lampshade 3 is along on lamp stand 2
External screw thread turn downwards after can cover cup 7.
The present embodiment is equipped with the first mounting table (not shown) and the second mounting table 5 on the top of lamp holder 1, and first places
The table top of platform is higher than the table top of the second mounting table 5, and water receiver can be placed on the first mounting table, is placed on the second mounting table 5
Cup 7, the bottom of water receiver are not less than the top of the cup 7, and equipped with matched with water receiver on the first mounting table
First placing groove, on the second mounting table 5 be equipped with matched second placing groove of cup 7, second placing groove of the present embodiment
With toothed projections, when preventing from placing lesser cup 7, cup 7 slides slot bottom in the second placing groove, spills water
Out.
The side of water receiver is connected with the outlet pipe 4 being connected to water receiver, and outlet pipe 4 is extend by the rim of a cup of cup 7
Inside cup 7, solenoid valve YV is equipped in outlet pipe 4, solenoid valve YV passes through the automatic draining circuit control being arranged in pedestal.
It is as shown in Fig. 2 the schematic diagram of the present embodiment automatic draining circuit, automatic draining circuit includes power unit, electricity
The circuit magnet valve YV and control loop, power unit are respectively the circuit solenoid valve YV and control loop power supply.Specifically, power unit
Including transformer T, the both ends of the primary coil of the transformer T are connect with firewire N and zero curve L respectively, in the primary of transformer T
The route of coil and zero curve L are equipped with the fuse FU to play a protective role.The both ends of the secondary coil of transformer T respectively with by
The rectification circuit that bridge rectifier diode D is constituted is connected with the polar filter capacitor C filter circuit formed, through over commutation and filter
It powers after wave for control loop.In the present embodiment, the circuit solenoid valve YV directly passes through firewire N and zero curve L power supply.
The control loop of the present embodiment includes for detecting the first detecting electrode A of high water level, for detecting low water level
Second detecting electrode b, position are lower than auxiliary electrode E, first switch device TWH8751 and and the first switch of the second detecting electrode b
First relay K1 of device TWH8751 concatenation.
First detecting electrode A, the second detecting electrode b and auxiliary electrode E connect with the first switch device TWH8751 respectively
It connects, the second relay, the first normally opened contact K21 and first switch of second relay is equipped in the circuit of the lamp cap
Device TWH8751 concatenation, the first normally opened contact K11 of the first relay K1 are serially connected in the circuit solenoid valve YV, the first relay
The first normally-closed contact of device K1 is concatenated with the second detecting electrode b.
The first switch device TWH8751 of the present embodiment is existing product, and first switch device TWH8751 is total to there are five pin,
Pin 1 is input, and pin 2 is gated end, and pin 3 is ground terminal, and pin 4 is output end, and pin 5 is power end.
The pin 2 of first switch device TWH8751 is connect with one end of auxiliary electrode E and second resistance R2 respectively, the second electricity
The other end of resistance R2 is connect with the cathode of the pin 3 of first switch device TWH8751 and filter capacitor C respectively, in the route of pin 3
On be serially connected with the first normally opened contact K21 of the second relay, the pin 5 of first switch device TWH8751 passes through 3rd resistor R3 points
It is not connect with the anode of one end of first resistor R1 and filter capacitor C, and pin 5 and pin 1 are shorted, first resistor R1's is another
One end is connect with the first detecting electrode A, and the second detecting electrode b is connected to by the second normally-closed contact K12 of the first relay K1
The other end of first resistor R1.The first normally opened contact K11 of first relay K1 is serially connected on the circuit of solenoid valve YV.First
One end of relay K1 is connect with pin 4, and the other end of the first relay K1 is connect with the anode of filter capacitor C, first after
The diode D that cathode is connect with filter capacitor C anode is parallel on electric appliance K1.
The working principle of the automatic draining circuit of the present embodiment is as follows: when opening desk lamp, the second relay obtain it is electric, second
First normally opened contact K21 of relay is attracted.When the water level in cup 7 is in the lower section of the second detecting electrode b, first switch
The pin 2 of device TWH8751 is low level, and first switch device TWH8751 is connected, and the first relay K1 obtains electric, the first relay K1
The first normally opened contact K11 be attracted, solenoid valve YV opening discharge water.When the water level in cup 7 reaches the bottom end of the first detecting electrode A
When, the first detecting electrode A and auxiliary electrode E conducting, the pin 2 of first switch device TWH8751 are high level, first switch device
First normally opened contact K11 of TWH8751 cut-off, the first relay K1 power loss, the first relay K1 is disconnected, and solenoid valve YV stopping is put
Water.The second normally-closed contact K12 of the first relay K1 is attracted at this time, and the first detecting electrode A and the second detecting electrode b are connected, when
When water level in cup 7 is between the first detecting electrode A and the second detecting electrode b, since the first detecting electrode A and second is detected
Electrode b is to turn on, and the pin 2 of first switch device TWH8751 is still high level, first switch device TWH8751 cut-off, solenoid valve
YV does not discharge water, and when water level decreasing is to the second detecting electrode b or less, just discharges water again.After closing desk lamp sleep, no matter the
Which kind of state one derailing switch TWH8751 is in, entire to control since the first normally opened contact K21 of the second relay is to disconnect
Circuit will not all work.
In the present embodiment, if cup 7 not with a lid is used, since lampshade 3 is to be threadedly coupled with lamp stand 2
, thus lampshade 3 can be turned downwards along the external screw thread on the lamp stand 2 after can cover the water receiver and cup 7, thus anti-
When only not drinking water, dust or other sundries are dropped into cup 7.
As shown in figures 1 and 3, the present embodiment is equipped with the thermistor 8 of negative temperature coefficient, thermistor 8 on outlet pipe 4
It is connect with a second switch device, the second switch device is concatenated with a third relay, the normally closed touching of the third relay
Point is connected on the circuit of the first electromagnet 10 and the second electromagnet 11, is equipped in the top of the cup 7 for holding particle
The lower part of the repository 6 of drink, the repository 6 is provided with discharge port, is equipped with strainer 9 in the discharge outlet.In the discharging
The first electromagnet 10 is arranged in the side of mouth, is equipped with groove 12 in the other side of the discharge port, is equipped with a tension spring 13 in groove 12,
The end of tension spring 13 is equipped with a baffle, and the side of the baffle is extend into the groove 12, the other side setting of the baffle
Second electromagnet 11 is equipped with the limited block 14 that limit slippage door opens amplitude in the repository 6.
The lamp stand 2 of the present embodiment is hollow, and the outlet pipe 4 passes through the lamp stand 2, and the thermistor 8 is located at lamp
In bar 2, the connection of the thermistor 8, second switch device, third relay and the first electromagnet 10 and the second electromagnet 11
Route is respectively positioned in lamp stand 2.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description, technical field that the present invention belongs to is all before one skilled in the art know the applying date or priority date
Ordinary technical knowledge can know the prior art all in the field, and have using routine experiment hand before the date
The ability of section, one skilled in the art can improve and be implemented in conjunction with self-ability under the enlightenment that the application provides
This programme, some typical known features or known method should not become one skilled in the art and implement the application
Obstacle.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, can also make
Several modifications and improvements out, these also should be considered as protection scope of the present invention, these all will not influence the effect that the present invention is implemented
Fruit and patent practicability.The scope of protection required by this application should be based on the content of the claims, the tool in specification
The records such as body embodiment can be used for explaining the content of claim.
Claims (6)
1. the desk lamp with heat utilization function, including lamp holder, lamp stand that lamp holder top is arranged in, the lamp that lamp stand top is arranged in
Head and the lampshade being located on lamp cap, which is characterized in that the second mounting table is set on the top of the lamp holder, in the second mounting table
Upper holding water cup is equipped with the outlet pipe extending into inside cup at the rim of a cup of the cup, and electricity is equipped in the outlet pipe
Magnet valve, the solenoid valve pass through the automatic draining circuit control opening and closing being arranged in pedestal, are equipped on the outlet pipe negative
The thermistor of temperature coefficient, the thermistor are connect with a second switch device, the second switch device and a third
Relay concatenation, the normally-closed contact of the third relay is connected on the circuit of the first electromagnet and the second electromagnet, in institute
The top for stating cup is equipped with repository for holding particle drink, and the lower part of the repository is provided with discharge port, it is described go out
The first electromagnet is arranged in the side of material mouth, is equipped with groove in the other side of the discharge port, is equipped with a tension spring in groove, tension spring
End is equipped with a baffle, and the side of the baffle is extend into the groove, and the second electromagnet is arranged in the other side of the baffle,
Lamp stand is hollow, and the outlet pipe passes through the lamp stand, and the thermistor is located in lamp stand, the thermistor, second
The connection line of derailing switch, third relay and the first electromagnet and the second electromagnet is respectively positioned in lamp stand.
2. the desk lamp according to claim 1 with heat utilization function, it is characterised in that: the automatic draining circuit
Including power unit, Electromagnetic Valve Circuit and control loop, the power unit is respectively that Electromagnetic Valve Circuit and control loop are powered,
The control loop include for detecting the first detecting electrode of high water level, the second detecting electrode for detecting low water level,
Position is lower than auxiliary electrode, first switch device and the first relay concatenated with first switch device of the second detecting electrode, described
First detecting electrode, the second detecting electrode and auxiliary electrode are connect with the first switch device respectively, in the circuit of the lamp cap
In be equipped with the second relay, the first normally opened contact of second relay concatenates with first switch device, first relay
The first normally opened contact be serially connected in Electromagnetic Valve Circuit, the first normally-closed contact of the first relay is concatenated with the second detecting electrode.
3. the desk lamp according to claim 1 with heat utilization function, it is characterised in that: be equipped in the discharge outlet
Strainer.
4. the desk lamp according to claim 1 with heat utilization function, it is characterised in that: be equipped in the repository
The limited block of limit slippage door opening amplitude.
5. the desk lamp according to claim 1 with heat utilization function, it is characterised in that: the lamp stand is hollow, institute
The outlet pipe stated passes through the lamp stand, and the thermistor is located in lamp stand, the thermistor, second switch device, third
The connection line of relay and the first electromagnet and the second electromagnet is respectively positioned in lamp stand.
6. the desk lamp according to claim 1 with heat utilization function, it is characterised in that: be equipped on the lamp stand outer
Screw thread, the lampshade middle part are provided with internal thread hole, and the lampshade is threadedly coupled with the lamp stand, and the lampshade is along institute
Cup can be covered by stating after the external screw thread on lamp stand turns downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610477321.XA CN106122828B (en) | 2016-06-27 | 2016-06-27 | Desk lamp with heat utilization function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610477321.XA CN106122828B (en) | 2016-06-27 | 2016-06-27 | Desk lamp with heat utilization function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106122828A CN106122828A (en) | 2016-11-16 |
| CN106122828B true CN106122828B (en) | 2019-04-09 |
Family
ID=57266478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610477321.XA Expired - Fee Related CN106122828B (en) | 2016-06-27 | 2016-06-27 | Desk lamp with heat utilization function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106122828B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797120A (en) * | 2009-11-23 | 2010-08-11 | 马新源 | Full-automatic multi-functional beverage machine |
| CN103284583B (en) * | 2013-02-28 | 2015-05-06 | 许锦标 | Automatic feeding device suitable for full-automatic cooker |
| CN203749206U (en) * | 2014-03-31 | 2014-08-06 | 王闽燕 | Water boiling type coffee brewing machine |
-
2016
- 2016-06-27 CN CN201610477321.XA patent/CN106122828B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106122828A (en) | 2016-11-16 |
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Granted publication date: 20190409 Termination date: 20210627 |
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| CF01 | Termination of patent right due to non-payment of annual fee |