CN102231217A - Acousto-optic explosion-proof alarm device - Google Patents
Acousto-optic explosion-proof alarm device Download PDFInfo
- Publication number
- CN102231217A CN102231217A CN 201110148566 CN201110148566A CN102231217A CN 102231217 A CN102231217 A CN 102231217A CN 201110148566 CN201110148566 CN 201110148566 CN 201110148566 A CN201110148566 A CN 201110148566A CN 102231217 A CN102231217 A CN 102231217A
- Authority
- CN
- China
- Prior art keywords
- main body
- circuit board
- lower cover
- control circuit
- upper edge
- 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.)
- Granted
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 238000004880 explosion Methods 0.000 claims abstract description 7
- 210000004907 gland Anatomy 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000001629 suppression Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 206010019909 Hernia Diseases 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Images
Landscapes
- Emergency Alarm Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention is related to an alarm apparatus, concretely is an acousto-optic explosion-proof alarm device. The invention is characterized in that the lower edge of an annular top cover (2) is screwed and fixedly connected with the upper edge of a main body (3) through flame-proof screw threads, a translucent cover (1) is connected and fixed with the upper edge of the annular top cover (2) along screw threads and a cavity (24) is formed; the lower edge of the main body (3) is screwed and connected with the upper edge of a lower cover (4) through flame-proof screw threads; the inner lower edge of the lower cover (4) is screwed and connected with a screw ring (6) through flame-proof screw threads; a ring sheet (9) is provided with three pillars (10) which form a side sounding port (7) and a lower sounding port (8) with the bottom end of the lower cover (4). The light source circuit board (23) in the cavity (24) is fixedly connected with a control circuit board (21) through a copper spliced pole (22) and the control circuit board (21) is fixedly connected with a main body installation pole (20) through a supporting pillar (18). The beneficial effects of the invention are: the invention is characterized by simple and compact structure, reasonable layout and explosion suppression type structure; the invention is free from the restriction of element power and sound-making and luminescent equipment having large power can be used to raise the sound and the luminous intensity; and it is convenient to maintain, operate and use the apparatus. The sounding structure provided in the invention can realize multi-angle and free obstruction sounding.
Description
Technical field: the present invention relates to warning device, be specially a kind of acousto-optic anti-explosion alarming device.
Background technology: at present, known audible-visual annunciator has multiple, but the explosion-proof performance of product seldom can reach the ExdIICT6 explosive-proof grade.Ex is expressed as the electrical apparatus for explosive atmospheres sign, and d is expressed as flameproof electrical apparatus, and II C is expressed as other explosive gas atmosphere electrical appliance equipment except that the colliery, and T6 is expressed as the permission maximum surface temperature of electrical equipment smaller or equal to 85 ℃.
Reach at present ExdIICT6 explosive-proof grade sound and light alarm class product two kinds of frame modes are arranged, first kind is the essential safe type structure, because the circuit of essential safe type structure is to the restriction of short-circuit current and electric capacity, under the 24VDC duty, require electric current less than 261mA and capacitance less than 460nF, because the restriction of this condition causes sounding and luminous component can not use high-power components, and then greatly reduces alarm intensity of phonation, alarm luminous intensity.The intensity of phonation of this series products is less than 90dB (1 meter measuring distance), and luminous intensity is less than 10cd (1 meter measuring distance), for example explosion-proof audible-visual annunciator of Xinliming Explosion-Proof Electric Appliance Co., Ltd. and magnificent Rong Jituan.Second kind is the flame-proof type structure, and the CD inquiry is condensed through State Patent Office, does not have to find that the technical scheme that solves time problem is arranged.
Summary of the invention: purpose of the present invention provides a kind of simple in structure, and compact conformation is rationally distributed, and the flame-proof type structure is not subjected to the restriction of element power, can use high-power sounding, luminaire, improves sounding, luminous intensity.The acousto-optic anti-explosion alarming device that maintenance operation is easy to use.The object of the present invention is achieved like this: it comprises translucent cover (1), annular loam cake (2), main body (3), lower cover (4), flame proof gas-permeable nets (5), volution (6), alarming horn (11), EX PACKING GLAND (12), rubber plug (13), steel washer (14), gland nut (15), cable (16), lead (17), pillar (18), screw (19), control circuit board (21), copper joint pin (22), circuit of light sources plate (23).Annular loam cake (2) lower edge and main body (3) upper edge by flame proof thread screw fixedly connected, translucent cover (1) be threaded with annular loam cake (2) upper edge fixing, formation cavity (24); Main body (3) lower edge screws through flame proof thread with lower cover (4) upper edge and is connected, the inboard lower edge of lower cover (4) screws through flame proof thread with volution (6) and is connected, and ring plate (9) is provided with three pillars (10) and connects and composes side sounding mouth (7) and following sounding mouth (8) with lower cover (4) bottom.Circuit of light sources plate (23) in the cavity (24) is fixedlyed connected with control circuit board (21) through copper joint pin (22), and control circuit board (21) is connected and fixed through pillar (18) and main body erection column (20).The invention has the beneficial effects as follows: simple in structure, compact conformation, rationally distributed, the flame-proof type structure is not subjected to the restriction of element power, can use high-power sounding, luminaire, improves sounding, luminous intensity.Maintenance operation is easy to use.Vocal structure of the present invention can be realized the without hindrance sounding of multi-angle.
Description of drawings: Fig. 1 is a structural principle diagrammatic cross-section of the present invention; Fig. 2 is that A-A of the present invention is to the cross-section structure principle schematic; Fig. 3 is that B-B of the present invention is to the cross-section structure principle schematic.
Embodiment:
It comprises translucent cover 1, annular loam cake 2, main body 3, lower cover 4, flame proof gas-permeable nets 5, volution 6, alarming horn 11, EX PACKING GLAND 12, rubber plug 13, steel washer 14, nut 15, cable 16, lead 17, pillar 18, screw 19, control circuit board 21, copper joint pin 22, circuit of light sources plate 23.Annular loam cake 2 lower edges and main body 3 upper edges by flame proof thread screw fixedly connected, translucent cover 1 be threaded with annular loam cake 2 upper edges fixing, formation cavity 24; Main body 3 lower edges screw through flame proof thread with lower cover 4 upper edges and are connected, and lower cover 4 inboard lower edges and volution 6 screw through flame proof thread and be connected, and ring plate 9 is provided with three pillars 10 and connects and composes side sounding mouth 7 and following sounding mouth 8 with lower cover 4 bottoms.Circuit of light sources plate 23 in the cavity 24 is fixedlyed connected with control circuit board 21 through copper joint pin 22, and control circuit board 21 is connected and fixed through pillar 18 and main body erection column 20.The principle of work of the present invention and the course of work: translucent cover 1 and annular loam cake 2 upper edges become one after relying on screw thread and quantitative viscose glue to fix, annular loam cake 2 lower edges screw with flame proof thread with main body 3 upper edges and are connected, main body 3 lower edges screw with flame proof thread with lower cover 4 upper edges and are connected, flame proof gas-permeable nets 5 merges with volution 6 usefulness lathe roll extrusion and becomes one, lower cover 4 inboard lower edges screw with volution 6 usefulness flame proof threads and are connected, lower cover 4 bottoms are held up by three pillars on the ring plate 9 10, this structure forms side sounding mouth 7 and following sounding mouth 8, can realize the without hindrance sounding of multi-angle.The circuit of light sources plate 23 of cavity 24 inside is twisted to close through copper joint pin 22 and is fixed on the control circuit board 21, control circuit board 21 and main body erection column 20 by pillar 18 twist close fixing, alarming horn 11 and main body 3 usefulness screws 19 are stubborn close fixing, alarming horn 9 positive poles link to each other with negative pole with control circuit board 21 positive poles respectively by duplex wire 17 with negative pole, EX PACKING GLAND 12 screws with main body 3 usefulness flame proof threads and is connected, cable 16 passes rubber plug 13, steel washer 14, nut 15, uses nut 15 to screw and compresses to reach requirement of explosion proof.Flame proof gas-permeable nets 5 becomes one with volution 6 usefulness lathe roll extrusion, and lower cover 4 screws with volution 6 usefulness flame proof threads and is connected.Lower cover 4 is an one with ring plate 9, pillar 10.Circuit of light sources plate on the circuit of light sources plate 6 can be selected common LED, great power LED, bulb, hernia lamp etc. for use.Alarming horn 9 can be selected hummer, alarm, siren, loudspeaker etc. for use.
The present invention can make product satisfy under the ExdIICT6 explosive-proof grade prerequisite, and intensity of phonation is increased to 100dB (1 meter measuring distance), and luminous intensity is increased to 25cd (1 meter measuring distance).What this product shell partly adopted is thickening stainless steel and explosion-proof type plastic lamp shade structural design, this structural design is a kind of flame-proof type shell, entire circuit is encapsulated in flameproof enclosure inside, because the flame-proof type product to the voltage and current requirement without limits of circuit design, therefore can make product use high-power components.The material of plastic lamp shade and mechanism not only meet the requirement of blast resistance construction but also help penetrating of light.Adopt the design of flame proof gas-permeable nets in the bottom of product, not only meet the requirement of blast resistance construction but also help spreading out of of sound, and the design of loop bracket helps the diffusion of sound, avoids one way propagation.This will increase the alarm range of audible-visual annunciator product greatly, strengthen the warning effect of audible-visual annunciator product, for the evacuating personnel safeguarding of assets provides valuable time.
Claims (2)
1. acousto-optic anti-explosion alarming device, it comprises translucent cover (1), annular loam cake (2), main body (3), lower cover (4), flame proof gas-permeable nets (5), volution (6), alarming horn (11), EX PACKING GLAND (12), rubber plug (13), steel washer (14), gland nut (15), cable (16), lead (17), pillar (18), screw (19), control circuit board (21), copper joint pin (22), circuit of light sources plate (23), it is characterized in that: annular loam cake (2) lower edge is screwed by flame proof thread with main body (3) upper edge fixedlys connected, translucent cover (1) is threaded fixing with annular loam cake (2) upper edge, constitute cavity (24), main body (3) lower edge screws through flame proof thread with lower cover (4) upper edge and is connected, the inboard lower edge of lower cover (4) screws through flame proof thread with volution (6) and is connected, and ring plate (9) is provided with three pillars (10) and connects and composes side sounding mouth (7) and following sounding mouth (8) with lower cover (4) bottom.
2. a kind of acousto-optic anti-explosion alarming device according to claim 1, it is characterized in that: the circuit of light sources plate (23) in the cavity (24) is fixedlyed connected with control circuit board (21) through copper joint pin (22), and control circuit board (21) is connected and fixed through pillar (18) and main body erection column (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110148566 CN102231217B (en) | 2011-06-03 | 2011-06-03 | Acousto-optic explosion-proof alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110148566 CN102231217B (en) | 2011-06-03 | 2011-06-03 | Acousto-optic explosion-proof alarm device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102231217A true CN102231217A (en) | 2011-11-02 |
| CN102231217B CN102231217B (en) | 2013-07-10 |
Family
ID=44843779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110148566 Active CN102231217B (en) | 2011-06-03 | 2011-06-03 | Acousto-optic explosion-proof alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102231217B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780187A (en) * | 2012-06-06 | 2012-11-14 | 三一重型装备有限公司 | Cable connection device and explosion-proof electric control box |
| CN102852558A (en) * | 2012-09-20 | 2013-01-02 | 天地（常州）自动化股份有限公司 | Audible and visual alarm with classified voices for mines |
| CN102868134A (en) * | 2012-09-28 | 2013-01-09 | 三一重型装备有限公司 | Cable connection reinforcement device and engineering machinery |
| CN103411802A (en) * | 2013-08-14 | 2013-11-27 | 哈尔滨东方报警设备开发有限公司 | Explosion-proof suction pump with sound and light alarming, flow rate display, and regulation functions |
| CN104061952A (en) * | 2014-07-04 | 2014-09-24 | 哈尔滨东方报警设备开发有限公司 | Detector display window used in explosive environment |
| CN104269004A (en) * | 2014-10-24 | 2015-01-07 | 无锡格林通安全装备有限公司 | Explosion-proof sound alarm |
| CN112885018A (en) * | 2021-01-28 | 2021-06-01 | 左小甜 | Acousto-optic integrated fire alarm |
| CN113080561A (en) * | 2021-04-01 | 2021-07-09 | 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 | Nearly electric induction audible and visual alarm safety helmet |
| CN113112747A (en) * | 2021-04-01 | 2021-07-13 | 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 | Near electric early warning system of modularization |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050012629A1 (en) * | 2003-07-07 | 2005-01-20 | Michael Shebek | Self monitoring pool cover system |
| CN201142105Y (en) * | 2008-01-12 | 2008-10-29 | 阜新金鼎防爆安全设备有限公司 | Explosion-proof fire acousto-optic alarm |
| CN201638315U (en) * | 2009-10-09 | 2010-11-17 | 无锡格林通安全装备有限公司 | Explosion-proof audible and visual alarm |
| CN201638317U (en) * | 2010-01-20 | 2010-11-17 | 嘉兴市经开富城通讯设备厂 | Explosion-proof acoustic-optical alarm |
| CN201765652U (en) * | 2010-08-20 | 2011-03-16 | 田野 | Explosion-proof acousto-optic alarm |
| CN301521596S (en) * | 2010-11-22 | 2011-04-20 | 哈尔滨东方报警设备开发有限公司 | Explosion-proof sound and light alarm |
| CN202058262U (en) * | 2011-06-03 | 2011-11-30 | 哈尔滨东方报警设备开发有限公司 | Acousto-optical explosion-proof alarm device |
-
2011
- 2011-06-03 CN CN 201110148566 patent/CN102231217B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050012629A1 (en) * | 2003-07-07 | 2005-01-20 | Michael Shebek | Self monitoring pool cover system |
| CN201142105Y (en) * | 2008-01-12 | 2008-10-29 | 阜新金鼎防爆安全设备有限公司 | Explosion-proof fire acousto-optic alarm |
| CN201638315U (en) * | 2009-10-09 | 2010-11-17 | 无锡格林通安全装备有限公司 | Explosion-proof audible and visual alarm |
| CN201638317U (en) * | 2010-01-20 | 2010-11-17 | 嘉兴市经开富城通讯设备厂 | Explosion-proof acoustic-optical alarm |
| CN201765652U (en) * | 2010-08-20 | 2011-03-16 | 田野 | Explosion-proof acousto-optic alarm |
| CN301521596S (en) * | 2010-11-22 | 2011-04-20 | 哈尔滨东方报警设备开发有限公司 | Explosion-proof sound and light alarm |
| CN202058262U (en) * | 2011-06-03 | 2011-11-30 | 哈尔滨东方报警设备开发有限公司 | Acousto-optical explosion-proof alarm device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780187A (en) * | 2012-06-06 | 2012-11-14 | 三一重型装备有限公司 | Cable connection device and explosion-proof electric control box |
| CN102852558A (en) * | 2012-09-20 | 2013-01-02 | 天地（常州）自动化股份有限公司 | Audible and visual alarm with classified voices for mines |
| CN102852558B (en) * | 2012-09-20 | 2014-10-15 | 天地（常州）自动化股份有限公司 | Audible and visual alarm with classified voices for mines |
| CN102868134A (en) * | 2012-09-28 | 2013-01-09 | 三一重型装备有限公司 | Cable connection reinforcement device and engineering machinery |
| CN103411802A (en) * | 2013-08-14 | 2013-11-27 | 哈尔滨东方报警设备开发有限公司 | Explosion-proof suction pump with sound and light alarming, flow rate display, and regulation functions |
| CN104061952A (en) * | 2014-07-04 | 2014-09-24 | 哈尔滨东方报警设备开发有限公司 | Detector display window used in explosive environment |
| CN104269004A (en) * | 2014-10-24 | 2015-01-07 | 无锡格林通安全装备有限公司 | Explosion-proof sound alarm |
| CN112885018A (en) * | 2021-01-28 | 2021-06-01 | 左小甜 | Acousto-optic integrated fire alarm |
| CN113080561A (en) * | 2021-04-01 | 2021-07-09 | 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 | Nearly electric induction audible and visual alarm safety helmet |
| CN113112747A (en) * | 2021-04-01 | 2021-07-13 | 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 | Near electric early warning system of modularization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102231217B (en) | 2013-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102231217B (en) | Acousto-optic explosion-proof alarm device | |
| CN203968533U (en) | A kind of Switching Power Supply compartment | |
| US3995152A (en) | Electrical lighting structure built-in a molded plastic cord or cable | |
| CN202058262U (en) | Acousto-optical explosion-proof alarm device | |
| CN201310777Y (en) | Led anti-explosion lamp | |
| CN102080571B (en) | Flameproof and intrinsically safe voice acousto-optic signal box for coal mine | |
| CN201638315U (en) | Explosion-proof audible and visual alarm | |
| AR098304A1 (en) | PUBLIC LIGHTING LED APPARATUS WITH A PAIR OF HERMETIC PRESSACABLE BUSHINGS | |
| CN202691836U (en) | Waterproof antiflaming LED (light emitting diode) ceiling lamp | |
| CN102777775A (en) | Light-emitting diode (LED) anti-explosion lamp tube and anti-explosion lamp using same | |
| CN207262217U (en) | A kind of U.S. independently installed downlight of rule | |
| CN207580744U (en) | A kind of package packing machine chain breakage protection device | |
| CN105927945A (en) | Intelligent LED wireless network optimization streetlamp | |
| CN203297998U (en) | Anti-explosion clean ultraviolet lamp | |
| CN204187410U (en) | Adjustable light type LED anti-explosion lamp | |
| CN203533273U (en) | LED tri-proof lamp | |
| CN202306210U (en) | IO (input/output) module structure of control system | |
| CN204534321U (en) | Mine flameproof and intrinsic safety type LED roadway lamp | |
| CN206708758U (en) | A kind of LED projector lamp with explosion prevention function | |
| CN207692120U (en) | A kind of protective device for the box change safety debugging time control of street lamp | |
| CN204119677U (en) | Mine explosion-suppression and intrinsic safety signal box | |
| CN207316536U (en) | A kind of lamp cap for placing protective tube | |
| CN202455682U (en) | Electrical appliance for O area in dangerous area | |
| CN202768076U (en) | Voice structure of portable mining intrinsically safe type annunciator | |
| CN204731925U (en) | A kind of fire acoustic-optic alarm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Acousto-optic explosion-proof alarm device Effective date of registration: 20140126 Granted publication date: 20130710 Pledgee: Bank of Harbin Limited by Share Ltd Nangang branch Pledgor: Harbin East Alarm Systems Development Corporation Registration number: 2014990000077 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20141024 Granted publication date: 20130710 Pledgee: Bank of Harbin Limited by Share Ltd Nangang branch Pledgor: Harbin East Alarm Systems Development Corporation Registration number: 2014990000077 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Acousto-optic explosion-proof alarm device Effective date of registration: 20141027 Granted publication date: 20130710 Pledgee: Bank of Harbin Limited by Share Ltd Nangang branch Pledgor: Harbin East Alarm Systems Development Corporation Registration number: 2014990000896 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20151027 Granted publication date: 20130710 Pledgee: Bank of Harbin Limited by Share Ltd Nangang branch Pledgor: Harbin East Alarm Systems Development Corporation Registration number: 2014990000896 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Acousto-optic explosion-proof alarm device Effective date of registration: 20151029 Granted publication date: 20130710 Pledgee: Bank of Harbin Limited by Share Ltd Nangang branch Pledgor: Harbin East Alarm Systems Development Corporation Registration number: 2015990000935 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20161108 Granted publication date: 20130710 Pledgee: Bank of Harbin Limited by Share Ltd Nangang branch Pledgor: Harbin East Alarm Systems Development Corporation Registration number: 2015990000935 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Acousto-optic explosion-proof alarm device Effective date of registration: 20161108 Granted publication date: 20130710 Pledgee: Bank of Harbin Limited by Share Ltd Nangang branch Pledgor: Harbin East Alarm Systems Development Corporation Registration number: 2016990000958 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190416 Granted publication date: 20130710 Pledgee: Bank of Harbin Limited by Share Ltd Nangang branch Pledgor: Harbin East Alarm Systems Development Corporation Registration number: 2016990000958 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |