CN105234524B - A kind of Numerical control cutting dust removal device - Google Patents
A kind of Numerical control cutting dust removal device Download PDFInfo
- Publication number
- CN105234524B CN105234524B CN201510783695.XA CN201510783695A CN105234524B CN 105234524 B CN105234524 B CN 105234524B CN 201510783695 A CN201510783695 A CN 201510783695A CN 105234524 B CN105234524 B CN 105234524B
- Authority
- CN
- China
- Prior art keywords
- flue
- dust collecting
- flue dust
- collecting device
- material table
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Abstract
The present invention relates to a kind of Numerical control cutting dust removal device, including flue dust collecting device 4, flue dust collecting mouthful 5, flue 6, interface 3, blower fan 11, flexible pipe 10, it is characterized in that flue 6 is arranged on the bottom of flue dust collecting device 4, flue 6 is set to " L " shape, the upper end of " L " shape vertical component of flue 6 sets interface 3, interface 3 is connected with flexible pipe 10, flexible pipe 10 is connected with blower fan 11, flue dust collecting device 4 is a left side, it is right closed at both ends, the upper surface flue dust collecting provided with opening mouthful 5, its cross section is circular and oval or square and rectangle, the technology has simple in construction, using with it is easy for installation, dry dust removal, efficiency of dust collection is high, safe and reliable the features such as.
Description
Technical field
The present invention relates to numerical control cutting machine servicing unit or equipment technical field, particularly a kind of numerical control cutting machine dedusting dress
Put.
Background technology
It is well known that in sheet metal workpiece process, to improve the utilization rate of steel, commonly using numerical control cutting machine
Operated, met its different demand.At present, no matter laser, flame or plasma digital control cutting machine are being cut through
Cheng Zhong, will produce substantial amounts of flue dust, diffuse operation workshop flue dust, be unfavorable for environmental protection, and working environment very severe is serious to damage
Evil cutting workman's is healthy.Although there is water bath dust collector at this stage, due to the device when in use iron plate must and water
Contact, operates especially inconvenient, even if there is dry dust removal apparatus, structure is more complicated, and cost is high, and power consumption is big, uses peace
Dress is inconvenient, and the effect used at present is also undesirable.Based on described above, Application No. 201320195343.9, Publication No.
Slag trapping box, telescopic air duct, cigarette are disclosed in a kind of 203292714U CUT dedusting, collection slag device, the document
Dirt clarifier, slag trapping box is connected by pipe collar with telescopic air duct, telescopic air duct and fume purifier UNICOM, but it is produced into
This height, complicated, easily residual dust stratification is more in telescopic air duct, it has not been convenient to which the later stage clears up, and harmful substance is easily by stretching
Contracting formula air duct and light breeze filtering air duct discharge, are easily damaged fume purifier, removing for numerical control cutting machine how are solved at this stage
Dirt just seems extremely important, in the urgent need to a kind of numerical control cutting machine dry dust removal apparatus, is solved the above problems.
The content of the invention purpose of the present invention is：The problem of existing for prior art is improved, exploitation one kind can with gram
Take the inconvenient operation of water bath dust collector, the structure of also current dry dust removal apparatus is more complicated, cost is high, power consumption is big
Shortcoming and defect, also, design provides simple in construction, using with it is easy for installation flexibly dry dust removal, efficiency of dust collection is high, safety
A kind of reliable Numerical control cutting dust removal device.
The technical solution adopted for the present invention to solve the technical problems is：A kind of Numerical control cutting dust removal device, including cigarette
Dirt collection port 5 and flexible pipe 10, interface 3, flue 6, blower fan 11 and flue dust collecting device 4, the cross section of flue dust collecting device 4 for it is circular,
Oval, square or rectangle, it is characterised in that：Flue 6 is arranged on the bottom of flue dust collecting device 4, and flue 6 is set to " L "
Shape, the upper end of " L " shape vertical component of flue 6 sets interface 3, and interface 3 is connected with flexible pipe 10, and flexible pipe 10 connects with blower fan 11
It is logical, wherein, the horizontal component of flue 6 " L " shape is arranged on the bottom of material table beam 8 and passed through from the bottom of material table beam 8 rear
The vertical component of flue 6 " L " shape is fittingly disposed between end carriage 2 and material table beam 8 and be fixed on the inner side of end carriage 2
Face, flue dust collecting device 4 is left and right closed at both ends, the upper surface flue dust collecting provided with opening mouthful 5, and lower surface is provided with flue 6,
And the lower surface of flue dust collecting device 4 is provided with the flue dust collecting device floss hole 12 connected with flue 6, and flue dust collecting device 4 is high
Degree is no more than the upper surface of material table beam 8, and length range ability more horizontal than burning torch is slightly longer, and flue dust collecting device 4 is consolidated with flue 6
Hold together and formed conveniently and coordinate the installing space 13 installed installed in the bottom of material table beam 8, such as Fig. 1-9
It is shown.
The course of work and principle of this technology be：A kind of Numerical control cutting dust removal device of this technology is cut in cutting process
The flue dust of rifle blowout, no matter burning torch is laterally operation or longitudinally running, and the flue dust blown out by burning torch can blow to flue dust receipts
Collect mouth 5, while starting blower fan 11, flexible pipe 10 is internally formed negative pressure in flue dust collecting device 4, easily can blown burning torch
In the flue dust inspiration flue dust collecting device 4 gone out, discharge outdoor is exported by blower fan 11 or is discharged after dust removal filter is filtered
It is outdoor.Specifically when a kind of Numerical control cutting dust removal device of this technology（Or abbreviation cutting machine）, its material table beam 8 is
There are support, middle hanging structure in two ends（As shown in Fig. 1）, when cutting machine works, flue dust collecting device 4 and flue 6 can be with
The crossbeam 1 of cutting machine is vertically moved with end carriage 2, when burning torch moves laterally, and lower section is all the time against flue dust collecting mouthfuls 5, when opening
Through flexible pipe 10, flue 6, the inside of flue dust collecting device 4 and flue dust collecting mouthful 5 surroundings formation negative pressure, Neng Gouxun during dynamic blower fan 11
Speed absorbs the flue dust of burning torch blowout, when being worked due to cutting machine, and burning torch is either longitudinally running or laterally operation flue dust is received
Storage collection port is corresponded to below burning torch all the time, is realized to material table all standing, therefore, it is possible to absorb burning torch blowout in time
Flue dust simultaneously discharges outdoor.This technology can also use other schemes（As shown in Fig. 8,9）, flue 6 is by upper and lower two parts here
Constitute, i.e., flue is the longitudinal structure dimerous of flue 14 of flue 6 and flue dust collecting device of " L " shape, and flue dust
The cross section of collector 4 is circular structure, certainly, and the cross section of flue dust collecting device 4 here can also be ellipse, and
Square or rectangular configuration, is specifically that this technology can also set flue the flue 6 of " L " shape set by lower parts transversely
Constituted with the longitudinal flue 14 of longitudinally disposed flue dust collecting device of upper part, flue 6 here is " L " shape, flue dust collecting
Device longitudinal direction flue 14 is rectangle, and the two horizontal vertical is connected, and the upper end and flue dust of " L " shape vertical component of flue 6 are received
The orifice that the storage longitudinal direction one end bottom of flue 14 is set, the other end top of flue dust collecting device longitudinal direction flue 14 is provided with
Interface 3, interface 3 is connected with flexible pipe 10, and flexible pipe 10 is connected with blower fan 11, wherein, flue 6 is arranged on material table
The bottom of beam 8 and it is fixed on the medial surface of end carriage 2 after from the bottom of material table beam 8, flue dust collecting device longitudinal direction flue
14 are arranged between end carriage 2 and material table beam 8；And flue dust collecting device 4 is left and right closed at both ends, and upper surface is set
There is the flue dust collecting mouthful 5 of open ports, lower surface is provided with flue, and the lower surface of flue dust collecting device 4 is provided with and connects cigarette with flue
Dirt collector floss hole 12, the cross section of flue dust collecting device 4 is circular or ellipse, and the height of flue dust collecting device 4 is no more than thing
Expect the upper surface of platform beam 8, length range ability more horizontal than burning torch is slightly longer, and flue dust collecting device 4 is with constituting flue 6 and flue dust
Collector longitudinal direction flue 14 is connected as an entirety and is formed convenient and coordinate what is installed installed in the bottom of material table beam 8
Installing space 13.
The beneficial effect of this technology is compared with existing technology in other words to be had the special feature that and is：The present invention can overcome water
Bathe dust arrester inconvenient operation and current dry dust removal apparatus structure it is more complicated, cost is high, the big shortcoming of power consumption and
It is not enough, it is possible to use the flue dust discharge that the air-introduced machine of smaller power is produced when just numerical control cutting machine can be worked is outdoor, and structure is set
Count ingenious, efficiency high, installation and operation expense is relatively low, large-sized numerical control cutting machine also can application implementation, with simple in construction, using with
Easy for installation flexible, dry dust removal, efficiency of dust collection is high, the features such as safe and reliable.
Brief description of the drawings
Fig. 1 is the working condition stereogram in the material table beam 8 installed in numerical control cutting machine of the present invention（Flue dust
The cross section of collector 4 is circular structure）.
Fig. 2 is Fig. 1 profile.
Fig. 3 is the overall structure figure of the present invention（The cross section of flue dust collecting device 4 is circular structure）.
Fig. 4 is the overall structure figure of the present invention（The cross section of flue dust collecting device 4 is oval structure）.
Fig. 5 is the working condition stereogram in the material table beam 8 installed in numerical control cutting machine of the present invention（Flue dust
The cross section of collector 4 is square）.
Fig. 6 is the overall structure figure of the present invention（The cross section of flue dust collecting device 4 is square structure.
The overall structure figure of Fig. 7 present invention（The rectangular configuration that the cross section of flue dust collecting device 4 is）.
Fig. 8 is the working condition stereogram in the material table beam 8 installed in numerical control cutting machine of the present invention（Flue
6 be the flue 6 that structure dimerous, i.e. flue are " L " shape and the longitudinal flue 14 of flue dust collecting device knot dimerous
Structure, and the cross section of flue dust collecting device 4 is circular structure, and certainly, the cross section of flue dust collecting device 4 here can also be
Ellipse, and square or rectangular configuration）.
Fig. 9 is the overall structure figure of the present invention（Flue 6 is the cigarette that structure dimerous, i.e. flue are " L " shape
Road 6 and the longitudinal flue 14 of flue dust collecting device structure dimerous, and the cross section of flue dust collecting device 4 is circular
Structure, certainly, the cross section of flue dust collecting device 4 here can also be ellipse, and square or rectangular configuration）.Fig. 9
It is the overall structure figure of the present invention（Flue 6 is that the flue 6 that structure dimerous, i.e. flue are " L " shape and flue dust are received
Storage longitudinal direction flue 14 structure dimerous, and the cross section of flue dust collecting device 4 is circular structure, certainly, this
In the cross section of flue dust collecting device 4 can also be ellipse, and square or rectangular configuration）.
In figure：1 crossbeam, 2 end carriages, 3 interfaces, 4 flue dust collecting devices, 5 flue dust collectings mouthful, 6 flues（Or " L " shape
Flue 6）, 7 lifting bodies, 8 beams（Or material table beam）, 9 supporting plates（Or material table supporting plate）, 10 flexible pipes,
11 blower fans（Air-introduced machine）, 12 flue dust collecting device floss holes, 13 installing spaces, 14 flue dust collecting devices longitudinal direction flue.
Embodiment
The embodiment of the present invention, as shown in Fig. 1-9, a kind of Numerical control cutting dust removal device, including flue dust are received
Collect mouth 5 and flexible pipe 10, interface 3, flue 6, blower fan 11 and flue dust collecting device 4, the cross section of flue dust collecting device 4 is circular, oval
Shape, square or rectangle, it is characterised in that：Flue 6 is arranged on the bottom of flue dust collecting device 4, and flue 6 is set to " L " shape, cigarette
The upper end of " L " the shape vertical component in road 6 sets interface 3, and interface 3 is connected with flexible pipe 10, and flexible pipe 10 is connected with blower fan 11, its
In, the horizontal component of flue 6 " L " shape is arranged on the bottom of material table beam 8 and makes cigarette after from the bottom of material table beam 8
The vertical component of road 6 " L " shape is fittingly disposed between end carriage 2 and material table beam 8 and is fixed on the medial surface of end carriage 2, cigarette
Dirt collector 4 is left and right closed at both ends, and the upper surface flue dust collecting provided with opening mouthful 5, lower surface is provided with flue 6, and
The lower surface of flue dust collecting device 4 is provided with the flue dust collecting device floss hole 12 connected with flue 6, and the height of flue dust collecting device 4 is not
More than the upper surface of material table beam 8, length range ability more horizontal than burning torch is slightly longer, and flue dust collecting device 4 is connected with flue 6 is
One entirety and formation installing space 13 that is convenient and being installed installed in the cooperation of the bottom of material table beam 8, as shown in Fig. 1-9.
Claims (1)
1. a kind of Numerical control cutting dust removal device, including flue dust collecting mouthful（ 5）And flexible pipe（10）, interface（3）, flue（6）, wind
Machine（ 11 ）With flue dust collecting device（4）, flue dust collecting device（4 ）Cross section is circular, oval, square or rectangle, and its feature exists
In：Flue (6) is arranged on the bottom of flue dust collecting device (4), and flue (6) is set to " L " shape, " L " shape of flue (6)
The upper end of vertical component sets interface (3), and interface (3) is connected with flexible pipe (10), and flexible pipe (10) connects with blower fan (11)
It is logical, wherein, the horizontal component of flue (6) " L " shape is arranged on material table beam (8) bottom and from material table beam (8) bottom
Portion makes the vertical component of flue (6) " L " shape be fittingly disposed between end carriage (2) and material table beam (8) and solid after
End carriage (2) medial surface is scheduled on, flue dust collecting device (4) is left and right closed at both ends, the upper surface flue dust collecting provided with opening mouthful
(5), lower surface is provided with flue (6), and flue dust collecting device (4) lower surface is provided with the flue dust connected with flue (6) and received
Storage floss hole (12), flue dust collecting device (4) is highly no more than material table beam (8) upper surface, and length is more horizontal than burning torch
Range ability is slightly longer, and flue dust collecting device (4) holds together and formed conveniently and installed in material table admittedly with flue (6)
Beam (8) bottom coordinates the installing space (13) installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783695.XA CN105234524B (en) | 2015-11-16 | 2015-11-16 | A kind of Numerical control cutting dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783695.XA CN105234524B (en) | 2015-11-16 | 2015-11-16 | A kind of Numerical control cutting dust removal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105234524A CN105234524A (en) | 2016-01-13 |
| CN105234524B true CN105234524B (en) | 2017-09-15 |
Family
ID=55032479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510783695.XA Expired - Fee Related CN105234524B (en) | 2015-11-16 | 2015-11-16 | A kind of Numerical control cutting dust removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105234524B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798444A (en) * | 2016-05-26 | 2016-07-27 | 安徽机电职业技术学院 | Plasma cutting machine |
| CN105880792B (en) * | 2016-06-12 | 2018-07-13 | 中冶京诚工程技术有限公司 | Unattended intelligent material cutter device and cutting method |
| US11565360B2 (en) | 2018-06-04 | 2023-01-31 | Uwm Research Foundation, Inc. | Dust collection for cutting machine |
| CN108772403A (en) * | 2018-07-09 | 2018-11-09 | 青岛海洋技师学院 | A kind of numerical control cutting machine Special dedusting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2882879Y (en) * | 2006-03-10 | 2007-03-28 | 深圳市大族激光科技股份有限公司 | Smoke exhauster of laser cutting machine |
| CN103056565A (en) * | 2013-01-04 | 2013-04-24 | 安徽安风风机有限公司 | Dust collection purifying device of numerical control cutting machine |
| CN203292714U (en) * | 2013-04-18 | 2013-11-20 | 滕州市三合机械股份有限公司 | Dust removal and residue collecting device of plasma cutting machine |
| CN204603553U (en) * | 2015-03-11 | 2015-09-02 | 大名县荣凯生物质能壁炉有限公司 | There is the CUT of smoke abatement dedusting function |
| CN204747745U (en) * | 2015-06-29 | 2015-11-11 | 肖华玲 | Pipe cutting machine |
| CN205668115U (en) * | 2015-11-16 | 2016-11-02 | 勃利县利民锅炉厂 | A kind of Numerical control cutting dust removal device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3678693B2 (en) * | 2001-10-30 | 2005-08-03 | コマツ産機株式会社 | Thermal cutting machine |
-
2015
- 2015-11-16 CN CN201510783695.XA patent/CN105234524B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2882879Y (en) * | 2006-03-10 | 2007-03-28 | 深圳市大族激光科技股份有限公司 | Smoke exhauster of laser cutting machine |
| CN103056565A (en) * | 2013-01-04 | 2013-04-24 | 安徽安风风机有限公司 | Dust collection purifying device of numerical control cutting machine |
| CN203292714U (en) * | 2013-04-18 | 2013-11-20 | 滕州市三合机械股份有限公司 | Dust removal and residue collecting device of plasma cutting machine |
| CN204603553U (en) * | 2015-03-11 | 2015-09-02 | 大名县荣凯生物质能壁炉有限公司 | There is the CUT of smoke abatement dedusting function |
| CN204747745U (en) * | 2015-06-29 | 2015-11-11 | 肖华玲 | Pipe cutting machine |
| CN205668115U (en) * | 2015-11-16 | 2016-11-02 | 勃利县利民锅炉厂 | A kind of Numerical control cutting dust removal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105234524A (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105234524B (en) | A kind of Numerical control cutting dust removal device | |
| CN203316897U (en) | Plasma cutting machine | |
| CN204912241U (en) | Entrapment of ladle hot repair station flue gas is filtered and is collected integrated device | |
| CN203750920U (en) | Dust remover for machining of graphite electrode machine tool | |
| CN215468689U (en) | Flame cutting device is used in processing of U-shaped rib with protection machanism | |
| CN204449639U (en) | Double excitation light beam Automatic-searching cutting machine | |
| CN205668115U (en) | A kind of Numerical control cutting dust removal device | |
| CN204246987U (en) | A kind of safety cabinet gas discharging Rose Box | |
| CN204340377U (en) | A kind of purifying and dedusting device of printing machine | |
| CN104826438B (en) | A kind of dust and waste gas treatment device | |
| CN203045190U (en) | Numerical control cutting machine dust collection and purifying device | |
| CN201744292U (en) | Two-stage air draft dust suction device for workshop | |
| CN212019699U (en) | Steel plate cutting device | |
| CN212029558U (en) | Convertible smoke abatement dust keeper | |
| CN210677435U (en) | Automatic welding dust collector at bottom of elevator sedan-chair | |
| CN201671538U (en) | Anchor drill | |
| CN204430561U (en) | A kind of laser process equipment | |
| CN207954205U (en) | A kind of piston structure wound form ceramic brick press of novel mass flow | |
| CN102151991A (en) | Air extractor of laser cutter | |
| CN203116538U (en) | Intermediate-frequency smelting furnace energy-saving and environment-friendly dust removal device | |
| CN211965306U (en) | Special mechanical arm for smoke and dust removal | |
| CN207085584U (en) | A kind of movable welding fume purifier | |
| CN110201965A (en) | Packaged type water seal cleaner | |
| CN213350017U (en) | Novel water seal type movable side-suction dust hood | |
| CN205660852U (en) | Carpenter room dust pelletizing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180428 Address after: 154541 Dongfeng Village, Xiao Wu Zhan Town, Boli County, Qitaihe, Heilongjiang, 8-74-1 Patentee after: Heilongjiang your biomass science and Technology Development Co., Ltd. Address before: 154541 Dongfeng Village, Xiao Wu Zhan Town, Boli County, Qitaihe, Heilongjiang (Wang Guiguo, Boli Limin boiler factory) Patentee before: BOLI LIMIN BOILER FACTORY |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170915 Termination date: 20201116 |