CN201735101U - Rocket used for forest fire fighting - Google Patents
Rocket used for forest fire fighting Download PDFInfo
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- CN201735101U CN201735101U CN2010202365801U CN201020236580U CN201735101U CN 201735101 U CN201735101 U CN 201735101U CN 2010202365801 U CN2010202365801 U CN 2010202365801U CN 201020236580 U CN201020236580 U CN 201020236580U CN 201735101 U CN201735101 U CN 201735101U
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- bearing bracket
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Abstract
The utility model discloses a rocket used for forest fire fighting, comprising a power device and a fire-fighting device which are coaxially and fixedly connected through a rear cover; an impact fuze of the fire-fighting device is arranged in an impact fuze base which penetrates through a nose cone to be installed at the central hole of a front end cover; a head cap is installed at the head of the impact fuze; an inertia fuze is positioned in an inertia fuze base which is installed at the central hole of a rear end cover; a central booster is arranged in an inner shell; and two ends of the inner shell are respectively arranged in the central holes of the front end cover and the rear end cover. The rocket flies to a fire point driven by the power device, when a rocket casing impacts on the fire point to trigger and impact the fuze so as to set off the central booster, an extinguishant casing shell is broken and an extinguishant is dropped around the point of impact, thus achieving the purposes of fire fighting and fire restraining. The rocket used for the forest fire fighting has the characteristics of being simple in structure, low in cost, easy for operation, and high in safety.
Description
Affiliated field
The present invention relates to the forest extinguishing device, specifically is a kind of rocket that is used for forest extinguishing.
Background technology
Enormous economic loss is caused in annual China and even the countries in the world given of forest fire, yet existing forest extinguishing mode is mainly and manually opens up the isolation strip at present, also have the mode that adopts aircraft to shed extinguishing chemical to put out a fire in developed regions comparatively, manual extinguishing's Fire extinguisher is mainly blower fan and some aim at the fire-fighting equipment of forest fire research and development.For example the hand-throw type fire extinguisher bomb draws the formula fire-fighting bomb for forest certainly, forest extinguishing big gun or the like, all registered patent of these products.
The hand-throw type superconduction fire extinguisher bomb extinguishing chemical amount of carrying is few, and the user of service is near apart from the scene of a fire; Be mainly used in and deploy troops on garrison duty around the scene of a fire from drawing the formula fire-fighting bomb for forest, belong to the passive type extinguishing device; The forest extinguishing big gun adopts mortar as flat pad, extinguishing device is transmitted into ignition point, but the emitter quality is big, and range is near, and launching site requires high, and for a varied topography, the condition of a fire that ungetable forest land produces can not timely and effectively be reacted.
Just to get angry feelings be main target to occur in forest land with a varied topography in the present invention, carrying capacity by individual rocket overcomes the adverse effect of terrain to the fire extinguishing operation, strive for when the initial stage intensity of a fire of catching fire does not also fully spread, ignition point effectively being removed outside certain distance and being suppressed.For final fire extinguishing is got the time.
Rocket projectile emission and carrying platform have been equipped in utilization of the present invention, the extinguishing chemical cabin is emitted to body of fire, rocket carries trigger point ignition system and delayed firing system, explosive-body to the prepackage of center, extinguishing chemical cabin is lighted a fire, produce strong detonation effect, the high pressure draught that is produced evenly explodes extinguishing chemical diffusing and is distributed in the space, the scene of a fire, rapidly, accurate and effective control surface-fire spreads, thereby reach the fire extinguishing or the control intensity of a fire, provide the enough time for the forest fire-fighter enters scene of a fire fire extinguishing.
Summary of the invention
For overcoming forest extinguishing, personnel are difficult near the scene of a fire, and extinguishing device problems such as to carry extinguishing chemical few, and time is long, and is costly, the present invention proposes a kind of rocket that is used for forest extinguishing.
The present invention includes power set and extinguishing device.Power set comprise solid propellant rocket and propellant powder, extinguishing device is a section structure, comprises booster, fuse and housing, it is characterized in that, power set and extinguishing device are coaxial, and the rear end cap of extinguishing device is fixedlyed connected with the booster front end of power set.Extinguishing device comprises head cap, percussion fuze, percussion fuze base, nose cone, drive end bearing bracket, housing, inner housing, center booster, inertia fuze base, inertia fuze and rear end cap, and drive end bearing bracket and rear end cap lay respectively at the two ends of housing, percussion fuze is positioned at the percussion fuze base, the percussion fuze base passes in the centre bore that nose cone is installed in drive end bearing bracket, head cap is installed in the head of percussion fuze, inertia fuze is positioned at the inertia fuze base, the inertia fuze base is positioned at rear end cap, and is installed in the centre bore of rear end cap.The center booster is arranged in inner housing.The two ends of inner housing are respectively charged in the centre bore of drive end bearing bracket and rear end cap.
There is the fuse striker hole of percussion fuze at described head cap one end end face center, is evenly equipped with anti-skidding bolt on the excircle of bottom, head cap fuse striker installing hole hole.
Described percussion fuze comprises housing, striker and cartridge igniter; The aperture of housing one end endoporus is with the external diameter of striker, and the aperture of other end endoporus is with the external diameter of cartridge igniter; The aperture at housing middle part has formed the striker via hole greater than the external diameter of striker; The shear pin of housing center line was installed on the circumference of housing installation striker end.
The aperture of described percussion fuze base one end endoporus is with the external diameter of percussion fuze, the external diameter of the aperture percussion fuze cartridge igniter of the other end; The endoporus at percussion fuze base middle part is a screwed hole, is used for being connected with the housing of percussion fuze; The boss inner side end of percussion fuze base one end external peripheral surface is the mating surface of percussion fuze base and nose cone one end end face; External peripheral surface at the percussion fuze base other end has connecting thread.
The aperture of the smaller diameter end center straight hole of described nose cone is with the external diameter of percussion fuze base; The external diameter of nose cone larger diameter end is with the aperture of the internal thread hole of drive end bearing bracket, and the external peripheral surface of nose cone larger diameter end has connecting thread; Seamlessly transit between the smaller diameter end of nose cone and the larger diameter end of nose cone.
The internal thread hole aperture of described drive end bearing bracket endoporus one end is with the external diameter of percussion fuze base, and the aperture of the endoporus other end of drive end bearing bracket is with the external diameter of housing; The aperture at drive end bearing bracket endoporus middle part is with the external diameter of inner housing; Be distributed with on cylindrical boss one side end face of drive end bearing bracket one end and be used for the connecting hole that is connected with the external peripheral surface of nose cone larger diameter end; The threaded connection hole that drive end bearing bracket is connected with the external screw thread of nose cone and the large diameter hole of drive end bearing bracket connect.
The external diameter of described inertia fuze base male end is with the internal diameter of rear end cap internal thread hole, and the aperture of the inertia fuze base other end is with the external diameter of inner housing; There is the installing hole of inertia fuze at inertia fuze base endoporus middle part.
Described rear end cap two ends all have one section to have externally threaded isometrical section, and larger diameter end is connected with housing, and smaller diameter end is connected with power set; The endoporus of rear end cap smaller diameter end is connected with the inertia fuze base.
During use, shooter finds launching site earlier, and extinguishing device is connected with power set, and integral installation aims at ignition point in emitter then, the cocking emission.Extinguishing device flies to ignition point under power set promote.Clash into moment at cabin body and ignition point, the percussion fuze that is installed on cabin body head triggers, the center booster is detonated, break extinguishing chemical cabin housing and extinguishing chemical is shed around point of impact, thereby play the purpose of the fire extinguishing and the inhibition intensity of a fire, the inertia fuze that is installed on the rear end started in the T-time, had time-delay delivery effect, was used for the self-destruction at percussion fuze inefficacy rear deck body.
The present invention utilizes domestic certain antitank rocket mature technology pickaback, and extinguishing chemical is emitted to forest fire point, covers duration and degree of heating thereby reach at one effectively in the circle, reaches and slows down, and reduces the intensity of a fire, up to final fire extinguishing.The present invention designs according to field equipment, is convenient at forest land of mountain area motor-drivenly, helps reducing firefighters and arrives the needed time of the scene of a fire; Transmitter site does not have specific (special) requirements, and time is suitable with the field operations individual rocket; Power and emitter use weaponry and equipment in active service, and the accuracy at target height be convenient to early stage ignition point is carried out targeted elimination, and the extinguishing chemical amount of carrying is greater than like product.
Description of drawings
Accompanying drawing 1 is the front view of head cap structural representation;
Accompanying drawing 2 is vertical views of head cap structural representation;
Accompanying drawing 3 is structural representations of percussion fuze;
Accompanying drawing 4 is structural representations of percussion fuze base;
Accompanying drawing 5 is structural representations of percussion fuze base;
Accompanying drawing 6 is structural representations of nose cone;
Accompanying drawing 7 is structural representations of drive end bearing bracket;
Accompanying drawing 8 is structural representations of drive end bearing bracket;
Accompanying drawing 9 is structural representations of housing;
Accompanying drawing 10 is structural representations of inner housing;
Accompanying drawing 11 is structural representations of center booster;
Accompanying drawing 12 is structural representations of back fuse;
Accompanying drawing 13 is structural representations of percussion fuze base;
Accompanying drawing 14 is structural representations of rear end cap;
Accompanying drawing 15 is extinguishing device structural representations;
Accompanying drawing 16 is structural representations of forest extinguishing rocket.
1. head cap 2. percussion fuzes 3. percussion fuze bases 4. nose cones 5. drive end bearing brackets 6. housings 7. inner housings 8. center boosters 9. inertia fuze bases 10. inertia fuzes 11. rear end caps 12. power set
The specific embodiment
Present embodiment is a kind of rocket that is used for forest extinguishing.Comprise extinguishing device and power set.Structure as shown in figure 16.Fixedly connected between extinguishing device and the power set 12.
Extinguishing device is a section structure, comprises head cap 1, percussion fuze 2, percussion fuze base 3, nose cone 4, drive end bearing bracket 5, housing 6, inner housing 7, center booster 8, inertia fuze base 9, inertia fuze 10 and rear end cap 11.Drive end bearing bracket 5 and rear end cap 11 lay respectively at the two ends of housing 6.Percussion fuze 2 is positioned at percussion fuze base 3; Percussion fuze base 3 passes in the centre bore that nose cone 4 is installed in drive end bearing bracket 5; Head cap 1 is installed in the head of percussion fuze 2.Inertia fuze 10 is positioned at inertia fuze base 9; Inertia fuze base 9 is positioned at rear end cap 11, and is installed in the centre bore of rear end cap 11.Center booster 8 is arranged in inner housing 7, and the two ends of inner housing 7 are respectively charged in the centre bore of drive end bearing bracket 5 and rear end cap 11.
Shown in Fig. 1～2, head cap is a cylinder.At head cap one end end face center blind hole is arranged, be used to install the fuse striker of percussion fuze 2.Uniform 4 screwed holes are used to install anti-skidding bolt on the excircle of bottom, head cap fuse striker installing hole hole.
As shown in Figure 3, percussion fuze 2 comprises housing, striker and cartridge igniter.Housing is the hollow revolving body, and its endoporus is stepped, and wherein the aperture of an end endoporus is with the external diameter of striker, and the aperture of other end endoporus is with the external diameter of cartridge igniter; The aperture at housing middle part has formed the striker via hole greater than the external diameter of striker.The through hole of housing center line was arranged on the circumference of housing installation striker end, be used to install shear pin.Percussion fuze 2 is installed on the percussion fuze base 3 by screw thread.
Shown in Fig. 4～5, percussion fuze base 3 is the hollow bolt shape.Percussion fuze base 3 endoporus are stepped hole, and wherein the aperture of an end endoporus is with the external diameter of percussion fuze 2, the external diameter of aperture percussion fuze 2 cartridge igniters of the other end; The endoporus at percussion fuze base 3 middle parts is a screwed hole, is used for being connected with the housing of percussion fuze 2.External peripheral surface at percussion fuze base 3 one ends has boss, and this boss inner side end has formed the mating surface of percussion fuze base 3 with nose cone 4 one end end faces; For convenience of the fitting operation of percussion fuze base 3, this boss is a hexagon.External peripheral surface at percussion fuze base 3 other ends has connecting thread.
As shown in Figure 6, nose cone 4 is the taper revolving shell.The smaller diameter end of nose cone 4 has the center straight hole, and the aperture in this hole is with the external diameter of percussion fuze base 3.The external diameter of nose cone 4 larger diameter end is with the aperture of the internal thread hole of drive end bearing bracket 5, and the external peripheral surface of nose cone 4 larger diameter end has connecting thread.Seamlessly transit between the larger diameter end of the smaller diameter end of nose cone 4 and nose cone 4.
As shown in Figure 7, drive end bearing bracket 5 is stepped hollow revolving body.The endoporus of drive end bearing bracket 5 is a shoulder hole, and its place, aperture is the path hole of internal thread, and this aperture is with the external diameter of percussion fuze base 3; The endoporus other end of drive end bearing bracket 5 is hole, big footpath, and the aperture in this hole is with the external diameter of housing 6; Aperture in the middle part of drive end bearing bracket 5 endoporus is with the external diameter of inner housing 7; Between drive end bearing bracket 5 middle part endoporus and drive end bearing bracket 5 big footpath endoporus, seamlessly transit, formed cone-shaped inner hole at this place.Drive end bearing bracket 5 one ends have the cylindrical boss that radially protrudes; Be distributed with four through holes on a side end face of this cylindrical boss, and this through hole is shoulder hole, wherein large diameter hole is a threaded connection hole, is used for being connected with the external screw thread of the external peripheral surface of nose cone 4 larger diameter end.The threaded connection hole that drive end bearing bracket 5 is connected with the external screw thread of nose cone 4 and the large diameter hole of drive end bearing bracket 5 connect.
As shown in Figure 9, housing 6 is isometrical thin cylinder, and its external diameter is with the maximum outside diameter of drive end bearing bracket 5.External peripheral surface at housing 6 one ends is the concave station rank, is used for pegging graft with the maximum outside diameter of drive end bearing bracket 5.Endoporus at place, housing 6 other end apertures is a screwed hole, is used for being spirally connected with rear end cap 11.
Shown in Figure 10～11, inner housing 7 and center booster 8 are isometrical thin cylinder.Be filled with the sonic boom agent in the center booster 8, and two ends are with flammable film shutoff; Center booster 8 is contained in the inner housing 7.
As shown in figure 13, inertia fuze base 9 is the hollow double-screw bolt, and an end has external screw thread, and there is stepped hole at the center.The external diameter of inertia fuze base 9 male end is with the internal diameter of rear end cap 11 internal thread holes.The aperture of inertia fuze base 9 other ends is with the external diameter of inner housing 7, and is used for the spacing of inner housing 7 by the formed step end face of shoulder hole.Inertia fuze base 9 endoporus middle part is a screwed hole, is used to install inertia fuze 10.
As shown in figure 12, inertia fuze 19 is the stepped hollow housing of end sealing.The big outer diameter section of inertia fuze 19 is processed with screw thread, is used for being connected with the internal thread of inertia fuze base 9.The aperture in the large diameter hole of inertia fuze 19 is with the external diameter of fuse cartridge igniter.
As shown in figure 14, rear end cap 11 is the conical thin-wall revolving body.Rear end cap 11 two ends all have one section to have externally threaded isometrical cylindrical section, and larger diameter end is connected with housing 6, and smaller diameter end is connected with the booster front end of power set 12.The endoporus of rear end cap 11 smaller diameter end is a screwed hole, is used for being connected with the inertia fuze base.
During assembling, earlier be that the inertia fuze base 10 of screw thread is screwed into rear end cap 11 and has in the internal thread centre bore, again rear end cap be connected with the housing threaded end end.After connection finishes, behind an inner housing one end gluing, inject in the centre bore of inertia fuze base front end, then drive end bearing bracket 5 is covered, inner housing 7 other ends are inserted in the centre bore of drive end bearing bracket.
After treating adhesive curing, take off drive end bearing bracket 5, glue is applied in inner housing 7 upper ends and drive end bearing bracket 5 and housing 6 junctions, again that the drive end bearing bracket lid is tight, and inner housing 7 front ends are inserted in the drive end bearing bracket centre bore.
After treating adhesive curing, the cabin body is put vertically, the certain mass extinguishing chemical is inserted the cabin body by four uniform holes around being positioned at centre bore on the drive end bearing bracket.After filling extinguishing chemical, will there be the dividing plate of centre bore to be installed in the drive end bearing bracket again, and make it block four powder charge holes of filling extinguishing chemical on the drive end bearing bracket, extinguishing chemical can not be spilt, be fixed with glue again.
After treating adhesive curing, nose cone 4 is screwed in the internal thread on the drive end bearing bracket 5, again center booster 8 is put into inner housing 7 after the centralized positioning by drive end bearing bracket 5 centre bores, we are screwed into the screwed percussion fuze base 3 of end drive end bearing bracket 5 centre bores upper end more then.
After finishing above-mentioned work, respectively percussion fuze 2 and inertia fuze 10 are screwed in percussion fuze base 3 and the inertia fuze base 9.After installing, head cap is installed on the percussion fuze front end.Head cap 1 adopts with percussion fuze 2 and is threaded, and earlier safety plug is put when connecting, and itself and percussion fuze 2 is tightened again.So far extinguishing device assembling finishes.
The rocket integral installation is finished before fitting over use.Extinguishing device rear end cap 11 rear ends are for being with externally threaded cylindrical section, and power set 12 front ends are processed with screwed hole.During use, shooter finds launching site earlier, be connected with power set front end 12 assembling the extinguishing device that finishes, connected mode be screw thread then integral installation in emitter, aiming ignition point, cocking emission.
Claims (8)
1. a rocket that is used for forest extinguishing comprises power set (12) and extinguishing device; Power set (12) comprise solid propellant rocket and propellant powder, extinguishing device comprises booster, fuse and housing, it is characterized in that power set and extinguishing device are coaxial, and the rear end cap of extinguishing device (11) is fixedlyed connected with the booster front end of power set; Described extinguishing device is a section structure, comprises head cap (1), percussion fuze (2), percussion fuze base (3), nose cone (4), drive end bearing bracket (5), housing (6), inner housing (7), center booster (8), inertia fuze base (9), inertia fuze (10) and rear end cap (11); Wherein, drive end bearing bracket (5) and rear end cap (11) lay respectively at the two ends of housing (6); Percussion fuze (2) is positioned at percussion fuze base (3); Percussion fuze base (3) passes nose cone (4) and is installed in the centre bore of drive end bearing bracket (5); Head cap (1) is installed in the head of percussion fuze (2); Inertia fuze (10) is positioned at inertia fuze base (9); Inertia fuze base (9) is positioned at rear end cap (11), and is installed in the centre bore of rear end cap (11); Center booster (8) is arranged in inner housing (7), and the two ends of inner housing (7) are respectively charged in the centre bore of drive end bearing bracket (5) and rear end cap (11); Fixedly connected between extinguishing device and the power set.
2. a kind of according to claim 1 rocket that is used for forest extinguishing is characterized in that, there is the fuse striker hole of percussion fuze (2) at head cap (1) one end end face center, is evenly equipped with anti-skidding bolt on the excircle of bottom, head cap fuse striker installing hole hole.
3. a kind of according to claim 1 rocket that is used for forest extinguishing is characterized in that percussion fuze (2) comprises housing, striker and cartridge igniter; The aperture of housing one end endoporus is with the external diameter of striker, and the aperture of other end endoporus is with the external diameter of cartridge igniter; The aperture at housing middle part has formed the striker via hole greater than the external diameter of striker; The shear pin of housing center line was installed on the circumference of housing installation striker end.
4. a kind of according to claim 1 rocket that is used for forest extinguishing is characterized in that, the external diameter of the same percussion fuze in aperture (2) of percussion fuze base (3) one end endoporus, the external diameter of aperture percussion fuze (2) cartridge igniter of the other end; The endoporus at percussion fuze base (3) middle part is a screwed hole, is used for being connected with the housing of percussion fuze (2); The boss inner side end of percussion fuze base (3) one end external peripheral surfaces is the mating surface of percussion fuze base (3) and nose cone (4) one end end faces; External peripheral surface at percussion fuze base (3) other end has connecting thread.
5. a kind of according to claim 1 rocket that is used for forest extinguishing is characterized in that, the aperture of the smaller diameter end center straight hole of nose cone (4) is with the external diameter of percussion fuze base (3); The aperture of the internal thread hole of the same drive end bearing bracket of external diameter (5) of nose cone (4) larger diameter end, and the external peripheral surface of nose cone (4) larger diameter end has connecting thread; Seamlessly transit between the larger diameter end of the smaller diameter end of nose cone (4) and nose cone (4).
6. a kind of according to claim 1 rocket that is used for forest extinguishing is characterized in that, the internal thread hole aperture of drive end bearing bracket (5) endoporus one end is with the external diameter of percussion fuze base (3), the external diameter of the same housing in aperture (6) of the endoporus other end of drive end bearing bracket (5); The external diameter of the same inner housing in aperture (7) at drive end bearing bracket (5) endoporus middle part; Be distributed with on cylindrical boss one side end face of drive end bearing bracket (5) one ends and be used for the connecting hole that is connected with the external peripheral surface of nose cone (4) larger diameter end; The threaded connection hole that drive end bearing bracket (5) is connected with the external screw thread of nose cone (4) and the large diameter hole of drive end bearing bracket (5) connect.
7. a kind of according to claim 1 rocket that is used for forest extinguishing is characterized in that, the internal diameter of the same rear end cap of external diameter (11) internal thread hole of inertia fuze base (9) male end, the external diameter of the same inner housing in aperture (7) of inertia fuze base (9) other end; There is the installing hole of inertia fuze (10) at inertia fuze base (9) endoporus middle part.
8. a kind of according to claim 1 rocket that is used for forest extinguishing is characterized in that, rear end cap (11) two ends all have one section to have externally threaded isometrical section, and larger diameter end is connected with housing (6), and smaller diameter end is connected with power set; The endoporus of rear end cap (11) smaller diameter end is connected with the inertia fuze base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202365801U CN201735101U (en) | 2010-06-24 | 2010-06-24 | Rocket used for forest fire fighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202365801U CN201735101U (en) | 2010-06-24 | 2010-06-24 | Rocket used for forest fire fighting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201735101U true CN201735101U (en) | 2011-02-09 |
Family
ID=43550380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202365801U Expired - Lifetime CN201735101U (en) | 2010-06-24 | 2010-06-24 | Rocket used for forest fire fighting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201735101U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103585731A (en) * | 2012-08-15 | 2014-02-19 | 国聪 | Airborne air-dropped double-controlled electrically-percussed fire extinguishing bomb |
-
2010
- 2010-06-24 CN CN2010202365801U patent/CN201735101U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103585731A (en) * | 2012-08-15 | 2014-02-19 | 国聪 | Airborne air-dropped double-controlled electrically-percussed fire extinguishing bomb |
| CN103585731B (en) * | 2012-08-15 | 2016-07-06 | 国聪 | Airborne air-drop double control-type electric shock sends out fire extinguisher bomb |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHAANXI ZHONGTIAN ROCKET TECHNOLOGY INC. Free format text: FORMER NAME: SHAANXI ZHONGJIAN ROCKET TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 710075 Shaanxi city of Xi'an province high tech Zone Venture Building on the eighth floor of block C Patentee after: Shaanxi Zhongtian Rocket Technology Inc. Address before: 710025 special word No.1, Tian Wang street, Shaanxi, Xi'an Patentee before: Shaanxi Zhongjian Rocket Technology Co., Ltd. Address after: 710075 Shaanxi city of Xi'an province high tech Zone Venture Building on the eighth floor of block C Patentee after: Shaanxi Zhongtian Rocket Technology Inc. Address before: 710025 special word No.1, Tian Wang street, Shaanxi, Xi'an Patentee before: Shaanxi Zhongjian Rocket Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |