GB1588426A - Field sprayer or spraying apparatus - Google Patents
Field sprayer or spraying apparatus Download PDFInfo
- Publication number
- GB1588426A GB1588426A GB5130377A GB5130377A GB1588426A GB 1588426 A GB1588426 A GB 1588426A GB 5130377 A GB5130377 A GB 5130377A GB 5130377 A GB5130377 A GB 5130377A GB 1588426 A GB1588426 A GB 1588426A
- Authority
- GB
- United Kingdom
- Prior art keywords
- central part
- frame
- intermediate frame
- spray boom
- basic frame
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/005—Special arrangements or adaptations of the spraying or distributing parts, e.g. adaptations or mounting of the spray booms, mounting of the nozzles, protection shields
- A01M7/0053—Mounting of the spraybooms
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The mounting device has a basic frame (1) which is connected to the field sprayer (3) and on which an intermediate frame (7) is pivotably mounted, whilst the pivot axis (10) pointing in the direction of travel is located in the upper region of the intermediate frame. The middle part (13) of the spray linkage (14) is arranged on the intermediate frame (7) so as to be movable in rotation about a bolt (11) extending in the direction of travel. The bolt (11) is located at a distance below the pivot axis (10) of the intermediate frame and in the region of the centre line drawn in the direction of travel through the centre of gravity (16) of the spray linkage. Resilient damping buffers (22, 25) are provided between the basic frame (1) and the intermediate frame (7) and between the latter and the middle part (13) of the spray linkage. These measures ensure that the spray linkage is constantly held parallel to the level of the ground surface even when the field sprayer is used on uneven ground and in hilly terrain. <IMAGE>
Description
(54) A FIELD SPRAYER OR SPRAYING APPARATUS
(71) We, AMAZONEN-WERKE H.
DREYER GmbH & Co. KG of 4507
Hasbergen-Gaste, Postbox 109, Federal Republic of Germany; a German company do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, td be particularly described in and by the following statement::- The present invention relates to a field sprayer or field spraying apparatus including a spray boom and means for attaching said boom to the main body of the apparatus containing the storage container, said means comprising a basic frame coupled to the field spraying apparatus and onto which frame an intermediate frame is pivotally mounted on the side averted from the storage container of the field spray and mounted in such a manner that the pivotal axis extending in the direction of travel is located in an upper region of the intermediate frame, and wherein the central part of the spray boom is rotatably mounted on the intermediate frame with resilient elements being provided between the central part and the base frame.
A field sprayer or spraying apparatus is already disclosed in German Offenlegungsschrift 2160227, wherein a central part of the spray boom is suspended on an intermediate frame by means of two struts extending diagonally outwards from the intermediate frame and which struts are hingedly mounted both on the intermediate frame and on the central part. Moreover, simple coiled compression or thrust springs are provided as resilient elements. The intermediate frame is connected to a hydraulic cylinder located on the basic frame and the intermediate frame and hence the central part of the spray boom may be pivotally moved by means of this cylinder.Since the hydraulic cylinder is controlled by sensor elements located at both ends of the spray boom with spaced relationship over the ground, the spray boom automatically assumes, in a favourable manner even when using the field spray in hilly terrain, a position parallel to the ground surface. This parallel positioning of the spray linkage is absolutely necessary so that due to varying distances of the individual spray nozzles on the spray boom from the ground and from the plants to be sprayed respectively, inaccuracies of the spray media distribution can be avoided. Moreover, fluctuations of the spray boom arising from an uneven ground may be compensated.
An adverse feature, however, is that in this known attachment device, the aforesaid compensation occupies a considerable time period because the existing wound tension and compression springs do not exhibit vibration damping. Also, the adaptation of the spray boom to the given terrain requires a longer period of time, since the sensor elements are spaced from the ground at about 30 cm so that when spraying pesticides over the ground or onto low vegetation, the spray boom has first of all to assume an inclined position relative to the ground surface or the vegetation to be sprayed respectively before operating the control switch for controlling the hydraulic cylinder and after the control valve can be returned by the hydraulic cylinder into a position parallel with the level of the ground surface.However, inaccuracies in the spraying medium distribution on the ground or on the plants to be sprayed is unavoidable during these time periods required for the compensation of the fìuctua- tions and for adapting the spray boom to the terrain. With use in hilly terrain with frequently changing slope inclinations or on highly irregular ground surface, such may lead to the required parallel position of the spray boom never being reached. An aggrevating feature also is that with the inclined position of the basic frame, the centre part and hence the whole spray boom is laterally displaced, whereby a further danger of irregular distribution of the spray medium exists.An equally long period is also required by the removal of the inclined position of the spray boom produced during the torques occurring when making a narrow turn, as for example is necessary at the ends of fields.
Finally, the arrangement of the hydraulic cylinder with the hydraulic hoses required therefore, the contact switches, the control valve. and the sensor elements, produces a particularly costly arrangement.
It is an object of the invention to improve the known attachment device in such a manner that with the aid of simple means the spray boom is constantly retained parallel to the level of the ground surface even when using the. field spray on uneven ground surface and in hilly terrains.
According to the present invention there is provided a field sprayer or spraying apparatus including a spray boom and means for attaching said boom to the main body of the apparatus containing the storage container, said means- comprising a basic frame connected to the main body of the spraying apparatus and having an interrnediate frame pivotally mounted on the side of said basic frame remote from the normal: position of a storage container with the pivotal axis of the intermediate frame extending in the normal direction of travel of the spraying apparatus and being located in an upper region of the intermediate frame; a central part of the spray boom being rotatably mounted on the intermediate frame and provided with resilient elements acting between the central part and the basic frame, wherein said central part of the spray boom is rotatably mounted on the intermediate frame on a pivot pin extending in the direction of travel and located with spacing below the pivotal axis of the intermediate frame and in the region of the medial line drawn through the centre of gravity 'of the spray boom and wherein said resilient elements have a vibration absorbing or damping effect.Herewith the term vibration damping is to be understood such that the stress-elongation values of the resilient elements form a hysteresis loop.
Due to these measures the spasmodically fluctuating movements of' the basic frame caused by the unevenesses of the ground can effect the central part to only such a minimal extent and hence the spray boom that the slight fluctuations still transmitted are absorbed or immediately removed again by the resilient elements provided with vibration damping. Cbnsequently with a speedily occurring inclination of the basic frame normal relative to the direction of travel as occurs when being used in hilly terrain, the central part automatically follows this movement so that the spray boom assumes a constantly parallel position relative to- the level to the ground. surface.Additionally, in both operations, it is of particular advantage that the spray boom is unable to shift sideways relative to the basic frame so that the symmetry of the spray path relative to the central longitudinal axis ofthe field spray is always maintained. For the same reason, the spray boom. even when. carried quickly around a narrow bend assumes only a slight inclination which is immediately compensated on completion of the travel. round the bend.A particular important feature also resides in that the rapid fluctuation compensation on the one hand and the equally rapids automatic adjustment of the spray boom on a slope inclination on the. other hand is fully dependent upon the required ground clearance of the spray boom required for the given spray operation, so that the attachment device may be used without the slightest modification in the same manner for operating the field spray for spreading liquid fertilisers and pesticides both over the ground and the already growing vegetation.
Furthermore non-metal shock. absorbers are provided as resilient elements. This rneasure provides the additional advantage that the resilient elements are maintenance free and cannot be affected by the corrosive fertiliser and pesticide agents. It has herewith provided expedient for the non-metallic.
damping buffers to be located on both sides of the pin between the basic frame and the intermediate frame and the central part of the spray boom.
If shock absorbers are connected on the one hand on both sides of the pivotal. axis on the basic frame and on the central part of the spray linkage on the other hand, there thus occurs a further damping of the impact transmission caused by the unevenesses of the ground from the basic frame to the central part, so that the spray boom itself assumes a quiet or stable position parallel to the level of the ground surface at a high operating speed. The same advantage is attained by having a steering damper connected on one side of the pivotal axis on the basic frame and on the central part of the spray boom.
Provision is made, moreover, in accordance with the invention for the central part to be connected to the intermediate frame via a ball-and-socket joint located in the centre of gravity of the spray boom and for guide elements to be provided: between the basic frame and the central part of the spray boom link-shaped. This provides compensation of unavoidable manufacturing limits in the rotatable location of the central part, and also prevents the spray boom swinging-to and fro in the direction of travel during considerable pitching movements of the field spray.
If in accordance with the invention the basic frame is mounted on the field spraying apparatus resiliently in a vertical plane, then travel vibrations acting on the spray'boom at high operating speeds are absorbed thus permitting a favourably light method of construction of the spray boom. The same effect is attained by the central part of the spray . boom being arranged over the inter mediate frame on the basic frame so as to be resilient in a vertical; plane.In this case the resilient elements need to be provided: only on the mounting of the basic frame or be tween the basic; frame and: tELe intermediate frame or the intermediate frame and the central part
The invention will be described further, by way of example. with reference to the accompanying drawings, in which:
Fig. 1 is a rear elevation of a field sprayer or spraying apparatus parked on the ground;
Fig. 2 is a side view of the apparatus of
Fig. 1; and
Fig. 3 is a section taken along the.line.A-R of Fig. 1.
A spraying apparatus is illustrated having a basic frame 1 which is mounted by means of pins 4 extending through apertures 5 so as to be vertically adjustable on a frame 2 of a field spraying unit 3. On the side of the basic frame 1 and remote from storage container 6 of the field spraying unit 3, an intermediate frame 7 is pivotally mounted on pivot pin 8 and the pivotal axis 10 thereof extends in the normal direction of travel 9 and is located in the upper region of the intermediate frame 7. A pin 11 extending in the normal direction of travel is welded in the intermediate frame 7 at a point below the pivotal axis 10. A central part 13 of spray boom 14 is rotatably mounted on pin 11 by means of a ball-andsocket joint 12 and the boom 14, besides central part 13, is also provided with two arms 15.In this embodiment the pivot pin 11 is located on the medial line 17 extending in the normal direction 9 of travel through the centre of gravity 16 of the spray boom 14, whilst the centre of gravity 16 is located in the ball-and-socket joint 12 of the spray boom 14. Moreover, spray nozzles 18 are mounted on both central part 13 and the arms 15.
Rubber cushion bearings 19 are provided to dampen vibrations produced as a result of travel and are mounted on the basic frame 1 and the bearings enclose the pins 4. For the same reason, the intermediate frame 7 is also mounted on the pin 8 by means of a rubber cushion bearing 20. Moreover, two non-metallic damping buffers 22 are mounted on both sides of the pivotal axis 10 on lower cross carrier 21 of the basic frame 1 and act as resilient elements, the free ends of the buffers 22 abutting against the longitudinal beam 23 of the intermediate frame 7. The two non-metallic buffers 25 are also provided on the two outer ends of cross beam 24 of the intermediate frame 7 and on both sides of the pins 11. The buffers 25 abut with their free ends against central cross carrier 26 of the central part 13.To avoid a pendulum or oscillating movement of the spray boom 14 in the normal direction 9 of travel, straps 27 are welded to the outer ends of the basic frame 1 and are penetrated by rods 28 secured to the central part 13 and together with the rods, form gate-like guide elements. Finally, on the right-hand side on the basic frame 1, a steering damper 29 is located and has its other end connected to the central part 13.
When using simple shock absorbers. 30j the steering damper 29 may be replaced by such shock absorbers, whereby a further shock absorber 30 (shown in broken lines) has. to. be provided on the other side on the basic frame 1 spaced equidistantly from the pivotal axis 10.
WHAT-W13 CLAIM IS.:- 1 A field sprayer or spraying apparatus including a spray boom and means for attaching said boom to the. main body of the apparatus containing the storage container, said means comprising a basic frame connected to the main body of the spraying apparatus and having an intermediate frame pivotally mounted on the side of said basic frame remote from the normal position of a storage container with the pivotal axis of the intermediate frame extending in the normal direction of travel of the spraying apparatus and being located in an upper region of the intermediate frame; a central part of the spray boom being rotatably mounted on the intermediate frame and provided with resilient elements acting between the central part and the basic frame, wherein said central part of the spray boom is rotatably mounted on the intermediate frame on a pivot pin extending in the direction of travel and located with spacing below the pivotal axis of the intermediate frame and in the region of the medial line drawn through the centre of gravity of the spray boom and wherein said resilient elements have a vibration absorbing or damping effect.
2. Apparatus as claimed in claim 1, in which non-metallic damping buffers are provided as resilient elements.
3. Apparatus as claimed in claims 1 and 2, in which non-metallic resilient damping buffers are located on both sides of the pivotal axis between the basic frame and the intermediate frame and the central part of the spray boom.
4. Apparatus as claimed in any of claims 1 to 3, in which shock absorbers are connected, on both sides of the pivotal axis of the spray boom and also on the central part of the spray boom.
5. Apparatus as claimed in any of claims 1 to 3, in which a steering damper is connected on one side of the pivotal axis on the basic frame and on the central part of the spray boom.
6. Apparatus as claimed in any of claims 1 to 5, in which the central part is connected to the intermediate frame via a ball and socket joint located in the centre of gravity of the spray boom and in which gate-like guide elements are provided between the basic frame and the central part of the spray boom.
7. Apparatus as claimed in any of claims
1 to 6, in which the basic frame is located
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (9)
1 A field sprayer or spraying apparatus including a spray boom and means for attaching said boom to the. main body of the apparatus containing the storage container, said means comprising a basic frame connected to the main body of the spraying apparatus and having an intermediate frame pivotally mounted on the side of said basic frame remote from the normal position of a storage container with the pivotal axis of the intermediate frame extending in the normal direction of travel of the spraying apparatus and being located in an upper region of the intermediate frame; a central part of the spray boom being rotatably mounted on the intermediate frame and provided with resilient elements acting between the central part and the basic frame, wherein said central part of the spray boom is rotatably mounted on the intermediate frame on a pivot pin extending in the direction of travel and located with spacing below the pivotal axis of the intermediate frame and in the region of the medial line drawn through the centre of gravity of the spray boom and wherein said resilient elements have a vibration absorbing or damping effect.
2. Apparatus as claimed in claim 1, in which non-metallic damping buffers are provided as resilient elements.
3. Apparatus as claimed in claims 1 and 2, in which non-metallic resilient damping buffers are located on both sides of the pivotal axis between the basic frame and the intermediate frame and the central part of the spray boom.
4. Apparatus as claimed in any of claims 1 to 3, in which shock absorbers are connected, on both sides of the pivotal axis of the spray boom and also on the central part of the spray boom.
5. Apparatus as claimed in any of claims 1 to 3, in which a steering damper is connected on one side of the pivotal axis on the basic frame and on the central part of the spray boom.
6. Apparatus as claimed in any of claims 1 to 5, in which the central part is connected to the intermediate frame via a ball and socket joint located in the centre of gravity of the spray boom and in which gate-like guide elements are provided between the basic frame and the central part of the spray boom.
7. Apparatus as claimed in any of claims
1 to 6, in which the basic frame is located
resiliently on the field spray and in a perpendicular plane.
8. Apparatus as claimed in any of claims 1 to 7, in which the central part of the spray boom is located resiliently in a perpendicular plane on the basic frame via the intermediate frame.
9. A field spraying appratus substantially as herein described with reference to and as illustrated in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762656279 DE2656279C2 (en) | 1976-12-11 | 1976-12-11 | Attachment device for the boom of a field sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1588426A true GB1588426A (en) | 1981-04-23 |
Family
ID=5995322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5130377A Expired GB1588426A (en) | 1976-12-11 | 1977-12-09 | Field sprayer or spraying apparatus |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT369623B (en) |
| BE (1) | BE861350A (en) |
| CH (1) | CH623983A5 (en) |
| DE (1) | DE2656279C2 (en) |
| FR (1) | FR2373229A1 (en) |
| GB (1) | GB1588426A (en) |
| NL (1) | NL7711413A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006011125A2 (en) * | 2004-07-26 | 2006-02-02 | Richard Murphy | A stabilising and release system for and boom holding and positioning system for an agricultural apparatus |
| US10035451B2 (en) | 2016-10-28 | 2018-07-31 | Cnh Industrial America Llc | Agricultural applicator attachment system |
| CN115183755A (en) * | 2022-07-27 | 2022-10-14 | 浙江宏诚工程咨询管理有限公司 | On-spot mapping device of building engineering |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU177977B (en) * | 1978-05-29 | 1982-02-28 | Debreceni Mezoegazdasagi | Tube suspension device particularly for plant protecting machines of large working width |
| HU182336B (en) * | 1981-05-25 | 1983-12-28 | Debreceni Mezoegazdasagi | Device for stabilizing beams suspended in their centre of gravity first for spraying frames being on plant protecting machines |
| FR2520586B1 (en) * | 1982-01-29 | 1985-08-02 | Tecnoma | MOBILE APPARATUS FOR SPRAYING A PLANT TREATMENT LIQUID |
| DE3203210C1 (en) * | 1982-02-01 | 1982-12-09 | Constructiewerkhuizen Allaeys N.V., 8970 Poperinge | Suspension of a distributor on an agricultural vehicle having a spray pipe |
| DE3225601A1 (en) * | 1982-02-01 | 1984-01-12 | Constructiewerkhuizen Allaeys N.V., 8970 Poperinge | Suspension of a distributor on an agricultural vehicle having a spray tube |
| FR2532817B2 (en) * | 1982-09-13 | 1985-10-25 | Tecnoma | MOBILE APPARATUS FOR SPRAYING A PLANT TREATMENT LIQUID |
| FR2559685A1 (en) * | 1984-02-16 | 1985-08-23 | Tecnoma | Movable apparatus for spraying a liquid for treating plants |
| DE3429042C1 (en) * | 1984-08-07 | 1988-10-20 | Rauch Landmaschinenfabrik GmbH, 7573 Sinzheim | Device for spreading loose material, in particular fertilizer |
| FR2654574B1 (en) * | 1989-11-21 | 1992-05-22 | Pasquini Daniel | STABILIZING DEVICE FOR MOUNTING AN AGRICULTURAL TOOL OF LARGE WIDTH ON A CARRIER. |
| FR2758434B1 (en) * | 1997-01-17 | 1999-04-09 | Hardi Evrard Sa | SUSPENSION DEVICE FOR AGRICULTURAL SPRAYING RAMP |
| DE10044646A1 (en) * | 2000-09-08 | 2002-04-04 | Horsch Maschinen Gmbh | Spray boom guidance |
| DE10314686B4 (en) * | 2003-03-26 | 2010-02-18 | Vogel & Noot Spray Solutions Gmbh | Field sprayer |
| FR2993140B1 (en) | 2012-07-12 | 2014-07-18 | Exel Ind | DEVICE FOR PENDULUM SUSPENSION OF SPRAY RAMP FOR AGRICULTURAL ENGINE |
| JP6378956B2 (en) * | 2014-07-11 | 2018-08-22 | Ｋｙｂ株式会社 | Boom vibration control device and boom sprayer |
| CN112544199B (en) * | 2020-12-07 | 2022-07-15 | 内蒙古自治区林业科学研究院 | Forestry is grown seedlings and is used fertilization equipment |
| CN113196926B (en) * | 2021-03-22 | 2022-05-17 | 新疆农业科学院农业机械化研究所 | Automatic production and fertilization device for vegetable cultivation in sunlight greenhouse |
| CN114793770A (en) * | 2022-06-02 | 2022-07-29 | 国网福建省电力有限公司电力科学研究院 | Method for promoting slope ecological restoration through manual intervention |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2565587A (en) * | 1950-06-12 | 1951-08-28 | Sr Jesse B Boyett | Mobile spraying machine |
| US3223330A (en) * | 1964-06-25 | 1965-12-14 | Plante Oscar W La | Spray boom leveler apparatus |
| DE1782190A1 (en) * | 1968-07-30 | 1970-12-17 | Cleanacres Ltd | Spray boom |
| FR2100130A5 (en) * | 1970-07-08 | 1972-03-17 | Hoegen Dijkhof Gmbh | |
| DE2160227A1 (en) * | 1971-12-04 | 1973-06-07 | Dietrich Maass | HEIGHT-ADJUSTABLE SPRAYING BOOM SUSPENSION FOR MOBILE SCHAEDLING CONTROL DEVICES IN FIELD CROPS WITH A SPRAYING BOOM LYING TRANSVERSE TO THE DRIVING DIRECTION |
| FR2171681A5 (en) * | 1972-02-09 | 1973-09-21 | Berthoud Sa | |
| DE2358204A1 (en) * | 1973-02-05 | 1974-08-08 | D Argenteuil Francis De Meeus | MOUNTING DEVICE FOR A WORK EQUIPMENT |
| FR2280307A2 (en) * | 1974-07-30 | 1976-02-27 | Berthoud Sa | Spray boom for agricultural sprayer - has boom suspended by adjustable cables from a support fixed to a tractor |
| FR2270774A1 (en) * | 1974-05-15 | 1975-12-12 | Berthoud Sa | Suspension for agricultural spray boom - has lifting jack pivotal by shock absorbing side jacks |
-
1976
- 1976-12-11 DE DE19762656279 patent/DE2656279C2/en not_active Expired
-
1977
- 1977-10-10 AT AT0722477A patent/AT369623B/en not_active IP Right Cessation
- 1977-10-14 CH CH1255177A patent/CH623983A5/en not_active IP Right Cessation
- 1977-10-18 NL NL7711413A patent/NL7711413A/en not_active Application Discontinuation
- 1977-11-30 BE BE183051A patent/BE861350A/en not_active IP Right Cessation
- 1977-12-09 GB GB5130377A patent/GB1588426A/en not_active Expired
- 1977-12-12 FR FR7737361A patent/FR2373229A1/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006011125A2 (en) * | 2004-07-26 | 2006-02-02 | Richard Murphy | A stabilising and release system for and boom holding and positioning system for an agricultural apparatus |
| WO2006011125A3 (en) * | 2004-07-26 | 2006-09-14 | Richard Murphy | A stabilising and release system for and boom holding and positioning system for an agricultural apparatus |
| GB2431331A (en) * | 2004-07-26 | 2007-04-25 | Richard Murphy | A stabilising and release system for and boom holding and positioning system for an agricultural apparatus |
| GB2431331B (en) * | 2004-07-26 | 2009-09-02 | Richard Murphy | An agricultural apparatus comprising stabilising and release system and boom holding and positioning system |
| US7861793B2 (en) | 2004-07-26 | 2011-01-04 | Richard Murphy | Stabilising and release system for and boom holding and positioning system for an agricultural apparatus |
| US10035451B2 (en) | 2016-10-28 | 2018-07-31 | Cnh Industrial America Llc | Agricultural applicator attachment system |
| CN115183755A (en) * | 2022-07-27 | 2022-10-14 | 浙江宏诚工程咨询管理有限公司 | On-spot mapping device of building engineering |
| CN115183755B (en) * | 2022-07-27 | 2024-06-11 | 浙江宏诚工程咨询管理有限公司 | On-spot survey and drawing device of building engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| BE861350A (en) | 1978-03-16 |
| FR2373229B1 (en) | 1983-04-15 |
| CH623983A5 (en) | 1981-07-15 |
| ATA722477A (en) | 1982-06-15 |
| AT369623B (en) | 1983-01-25 |
| DE2656279B1 (en) | 1978-03-30 |
| DE2656279C2 (en) | 1978-11-23 |
| NL7711413A (en) | 1978-06-13 |
| FR2373229A1 (en) | 1978-07-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |