CN112238235A - Drilling equipment is used in door and window processing - Google Patents
Drilling equipment is used in door and window processing Download PDFInfo
- Publication number
- CN112238235A CN112238235A CN202011086710.2A CN202011086710A CN112238235A CN 112238235 A CN112238235 A CN 112238235A CN 202011086710 A CN202011086710 A CN 202011086710A CN 112238235 A CN112238235 A CN 112238235A
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- CN
- China
- Prior art keywords
- plate
- supporting
- fixing frame
- door
- drilling
- 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.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 61
- 230000002093 peripheral Effects 0.000 claims description 4
- 240000004282 Grewia occidentalis Species 0.000 claims description 3
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000000051 modifying Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/04—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part adjustable in inclination
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
Abstract
The invention discloses a drilling device for door and window processing, which belongs to the technical field of door and window processing and comprises a bottom plate, a clamping and supporting mechanism and a drilling mechanism, wherein the clamping and supporting mechanism comprises a clamping seat; the drilling machine is provided with a drilling mechanism, so that the drilling machine can drill holes more accurately; the connecting plate can be guided through the side supporting rod provided with the second fixing frame, so that the connecting plate can be kept stable, the drilling depth can be accurately controlled through the scale marks, and drilling is more accurate.
Description
Technical Field
The invention relates to the technical field of door and window processing, in particular to a drilling device for door and window processing.
Background
Doors and windows are also important components of building construction and play an important role. Door and window need drill in the course of working, and the current drilling equipment for door and window processing's centre gripping supporting mechanism and drilling mechanism generally can't carry out angle modulation to be unfavorable for the drilling of multi-angle, thereby influence the drilling precision.
Disclosure of Invention
The present invention is directed to a drilling apparatus for processing doors and windows to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a drilling device for door and window processing comprises a bottom plate, a clamping and supporting mechanism and a drilling mechanism, wherein the clamping and supporting mechanism comprises a clamping seat, a first air cylinder is arranged on the left side and the right side of the upper end of the bottom plate respectively, a first air cylinder is fixedly arranged on the upper end of the bottom plate on the left side, a second air cylinder is slidably arranged on the right side of the upper end of the bottom plate, the left end of a piston rod at the output end of the second air cylinder is fixedly connected with the right side of the first air cylinder on the right side, a first supporting plate is fixedly arranged on the upper end of the first air cylinder respectively, a rotating shaft is fixedly inserted and inserted into the bottom side of the clamping seat respectively, the clamping seat is rotatably arranged between supporting seats at the upper end of the first supporting plate through the rotating shaft, the front end of the rotating shaft penetrates through the supporting seats and is fixedly connected with a first rotating, the upper end of the first supporting plate is fixedly provided with a first fixing plate, a threaded hole is formed in the first fixing plate, a first bolt is inserted into the threaded hole of the first fixing plate, and one end of the first bolt is movably connected with one side of the clamping and connecting plate.
As a further scheme of the invention: the drilling mechanism comprises a drilling machine, a first fixing frame is fixedly arranged at the upper end of the bottom plate, a sliding groove is formed in an upper side supporting plate of the first fixing frame, a thread block is arranged in the sliding groove of the upper side supporting plate of the first fixing frame in a sliding mode, the bottom end of the thread block penetrates through the upper side supporting plate of the first fixing frame and is fixedly connected with a second fixing frame, a third air cylinder is fixedly arranged at the bottom end of the second fixing frame, a connecting plate is fixedly connected to the bottom end of the third air cylinder, baffle plates are respectively arranged on the front side and the rear side of the bottom end of the connecting plate, a gear is arranged between the baffle plates, a supporting shaft is fixedly arranged in the middle of the gear and is arranged between the baffle plates through the supporting shaft, the drilling machine is fixedly connected to the bottom side of, the bottom end of the bolt II penetrates through the connecting plate and is movably connected with the upper end of the rack.
As a further scheme of the invention: the left side and the right side of the bottom end of the second fixing frame are provided with side supporting rods, through holes are formed in the left side and the right side of the connecting plate, the side supporting rods of the second fixing frame are inserted into the through holes of the connecting plate, and scale marks are arranged on the side supporting rods of the second fixing frame.
As a further scheme of the invention: and a cylinder IV is fixedly arranged at the upper end of the bottom plate between the clamping seats, and a support plate II is fixedly arranged at the upper end of the cylinder IV.
As a further scheme of the invention: and rubber pads are respectively fixedly arranged on the supporting surfaces of the clamping seat and the supporting plate II.
As a further scheme of the invention: the bottom end four corners of the bottom plate are respectively and fixedly provided with a supporting column, the bottom end of the supporting column is inserted into the sleeve, a plurality of positioning holes are longitudinally formed in the peripheral side of the supporting column, a positioning hole is correspondingly formed in the peripheral side shell wall of the sleeve, and a third bolt penetrates through the positioning holes of the sleeve and is inserted into the positioning holes of the supporting column.
As a further scheme of the invention: the upper side of the support plate on the upper side of the fixing frame is provided with a screw rod, one end of the screw rod is fixedly connected with a rotating handle II, the upper side of the thread block is provided with a threaded hole, and the screw rod is inserted into the threaded hole of the thread block.
Compared with the prior art, the invention has the beneficial effects that: the drilling machine is high in practicability, doors and windows with different sizes can be supported by the clamping and supporting mechanism, the inclination angle of the doors and windows can be adjusted, the inclination angle of the drilling machine can be adjusted by the drilling mechanism, and drilling can be more accurate by adjusting the inclination angle of the doors and windows and the inclination angle of the drilling machine; the connecting plate can be guided through the side supporting rod provided with the second fixing frame, so that the connecting plate can be kept stable, the drilling depth can be accurately controlled through the scale marks, and drilling is more accurate.
Drawings
Fig. 1 is a schematic structural diagram of a drilling device for processing doors and windows.
Fig. 2 is a front view of a drilling apparatus for window and door processing.
Fig. 3 is a perspective view of a screw block in a drilling apparatus for window and door processing.
Notations for reference numerals: 1-bottom plate, 2-first fixing frame, 3-screw rod, 4-thread block, 5-second fixing frame, 6-third cylinder, 7-connecting plate, 8-third bolt, 9-baffle, 10-second bolt, 11-gear, 12-rack, 13-scale mark, 14-drilling machine, 15-first cylinder, 16-first support plate, 17-clamping seat, 18-first rotating handle, 19-first bolt, 20-clamping plate, 21-rubber pad, 22-second cylinder, 23-fourth cylinder, 24-second support plate, 25-supporting column and 26-sleeve.
Detailed Description
The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
Example 1
Referring to fig. 1-3, a drilling device for door and window processing comprises a bottom plate 1, a clamping support mechanism and a drilling mechanism, wherein the clamping support mechanism comprises a clamping seat 17, a first air cylinder 15 is respectively arranged on the left side and the right side of the upper end of the bottom plate 1, the first air cylinder 15 on the left side is fixedly arranged on the upper end of the bottom plate 1, the first air cylinder 15 on the right side is slidably arranged on the upper end of the bottom plate 1, a second air cylinder 22 is transversely and fixedly arranged on the right end of the upper side of the bottom plate 1, the left end of a piston rod at the output end of the second air cylinder 22 is fixedly connected with the right side of the first air cylinder 15 on the right side, a first support plate 16 is respectively and fixedly arranged on the upper end of the first air cylinder 15, a rotating shaft is respectively and fixedly inserted and arranged on the bottom side of the clamping seat 17, the clamping seat 17 is rotatably, the handheld rod of the front side of the rotating handle 18 is in sliding clamping connection with the clamping groove of the clamping plate 20, a first fixing plate is fixedly arranged at the upper end of the first supporting plate 16, a threaded hole is formed in the first fixing plate, a first bolt 19 penetrates through the threaded hole of the first fixing plate, and one end of the first bolt 19 is movably connected with one side of the clamping plate 20.
In the embodiment, the drilling mechanism comprises a drilling machine 14, a first fixing frame 2 is fixedly arranged at the upper end of the bottom plate 1, a sliding groove is arranged on an upper side supporting plate of the first fixing frame 2, a thread block 4 is slidably arranged in the sliding groove of the upper side supporting plate of the first fixing frame 2, the bottom end of the thread block 4 penetrates through the upper side supporting plate of the first fixing frame 2 and is fixedly connected with a second fixing frame 5, a third air cylinder 6 is fixedly arranged at the bottom end of the second fixing frame 5, a connecting plate 7 is fixedly connected to the bottom end of the third air cylinder 6, baffle plates 9 are respectively arranged on the front side and the rear side of the bottom end of the connecting plate 7, a gear 11 is arranged between the baffle plates 9, a support shaft is fixedly arranged in the middle of the gear 11, the gear 11 is arranged between the baffle plates 9 through the support shaft, a threaded hole is formed in the connecting plate 7, a second bolt 10 is inserted into the threaded hole of the connecting plate 7, and the bottom end of the second bolt 10 penetrates through the connecting plate 7 and is movably connected with the upper end of the rack 12; when the angle of the drilling machine 14 needs to be adjusted, the second bolt 10 is rotated, the second bolt 10 drives the rack 12 to move upwards, so that the drilling machine 14 can be rotated, the drilling machine 14 drives the gear 11 to rotate, then the second bolt 10 is rotated reversely, so that the second bolt 10 drives the rack 12 to move downwards, the rack 12 is meshed with the gear 11, the gear 11 can be fixed, and the drilling angle of the drilling machine 14 can be adjusted.
In this embodiment, the fixed cylinder four 23 that is equipped with in bottom plate 1 upper end between the grip slipper 17, the fixed backup pad two 24 that is equipped with in upper end of cylinder four 23 can support door and window's middle part through being equipped with backup pad two 24 to can make door and window more stable.
In this embodiment, the supporting surfaces of the clamping seat 17 and the second supporting plate 24 are respectively and fixedly provided with a rubber pad 21, and the rubber pads 21 prevent the door and the window from rubbing against the clamping seat 17 and the second supporting plate 24, so that the door and the window can be protected from being abraded.
In this embodiment, support pillars 25 are respectively and fixedly disposed at four corners of the bottom end of the bottom plate 1, the bottom ends of the support pillars 25 are inserted into sleeves 26, a plurality of positioning holes are longitudinally disposed on the circumferential sides of the support pillars 25, a positioning hole is correspondingly disposed on the circumferential side wall of the sleeve 26, and a bolt three 8 passes through the positioning hole of the sleeve 26 and is inserted into the positioning hole of the support pillar 25; the height of the device can be adjusted by adjusting the position of the bolt three 8 inserted in the positioning hole of the supporting column 25, so that the device is convenient to use.
In the embodiment, a screw rod 3 is arranged on the upper side of the upper side support plate of the first fixing frame 2, one end of the screw rod 3 is fixedly connected with a second rotating handle, a threaded hole is formed in the upper side of the threaded block 4, and the screw rod 3 is inserted into the threaded hole of the threaded block 4; the screw rod 3 can be driven to rotate by rotating the second handle, the screw rod 3 can drive the thread block 4 to move leftwards or rightwards, and the resistance in the horizontal direction of the threads of the screw rod 3 is applied to the screw rod 4 after the movement of the thread block 4 is finished, so that the thread block 4 is kept stable and is not easy to move.
The working principle of the embodiment is as follows: when the device is used, the height of the device can be adjusted by adjusting the position of the bolt III 8 inserted in the positioning hole of the supporting column 25, so that the device is convenient to use; the door and window can be placed on the clamping seats 17, and the distance between the clamping seats 17 can be adjusted through the second air cylinder 22 according to the size of the door and window; the inclination angle of the clamping seat 17 is adjusted according to the position to be drilled, the first bolt 19 can drive the clamping plate 20 to move leftwards or rightwards by rotating the first bolt 19, so that the clamping plate 20 can drive the first rotating handle 18 to rotate, the first rotating handle 18 can further drive the clamping seat 17 to rotate, and the inclination angle of the supported door and window can be adjusted; the position of the thread block 4 is adjusted according to the position of a drilling hole, the screw rod 3 can be driven to rotate by rotating the handle two, the screw rod 3 can drive the thread block 4 to move leftwards or rightwards, and receives the resistance of the screw thread of the screw rod 3 in the horizontal direction after the movement of the screw block 4 is finished, so that the screw block 4 is kept stable and is not easy to move, then the angle of the drilling machine 14 is adjusted according to the inclined angle of the door and the window, the second bolt 10 is rotated, the second bolt 10 drives the rack 12 to move upwards, so that a drilling machine 14 can be rotated, the drilling machine 14 drives the gear 11 to rotate, then the second bolt 10 is rotated reversely so that the second bolt 10 drives the rack 12 to move downwards, so as to be engaged with the gear 11 through the rack 12, thereby fixing the gear 11, therefore, the drilling angle of the drilling machine 14 can be adjusted, and the drilling can be more accurate by adjusting the inclination angle of the door and the window and the inclination angle of the drilling machine 14; the middle part of the door and window can be supported by the second support plate 24, so that the door and window can be more stable.
Example 2
Referring to fig. 1-3, the present embodiment is further optimized based on embodiment 1, specifically: side supporting rods are arranged on the left side and the right side of the bottom end of the second fixing frame 5, through holes are formed in the left side and the right side of the connecting plate 7, the side supporting rods of the second fixing frame 5 are inserted into the through holes of the connecting plate 7, and scale marks 13 are arranged on the side supporting rods of the second fixing frame 5; the connecting plate 7 can be guided through the side supporting rod provided with the second fixing frame 5, so that the connecting plate 7 can be kept stable, the drilling depth can be accurately controlled through the scale marks 13, and drilling is more accurate.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The drilling device for processing the door and the window comprises a bottom plate (1), a clamping and supporting mechanism and a drilling mechanism, and is characterized in that the clamping and supporting mechanism comprises a clamping seat (17), wherein a first air cylinder (15) is arranged on the left side and the right side of the upper end of the bottom plate (1) respectively, the first air cylinder (15) is fixedly arranged on the upper end of the bottom plate (1), the first air cylinder (15) is arranged on the right side of the upper end of the bottom plate (1) in a sliding manner, a second air cylinder (22) is transversely and fixedly arranged at the right end of the upper side of the bottom plate (1), the left end and the right end of a piston rod at the output end of the second air cylinder (22) are fixedly connected with the right side of the first air cylinder (15), a first supporting plate (16) is fixedly arranged on the upper end of the first air cylinder (15) respectively, a rotating shaft is fixedly inserted into the clamping seat, and the front end of the rotating shaft penetrates through the supporting seat and is fixedly connected with a rotating rod I (18), the rotating rod I (18) at the front side is slidably clamped in a clamping groove of the clamping plate (20), a first fixing plate I is fixedly arranged at the upper end of the first supporting plate (16), a threaded hole is formed in the first fixing plate I, a first bolt (19) penetrates through the threaded hole of the first fixing plate I, and one end of the first bolt (19) is movably connected with one side of the clamping plate (20).
2. The drilling device for processing the door and window as claimed in claim 1, wherein the drilling mechanism comprises a drilling machine (14), a first fixing frame (2) is fixedly arranged at the upper end of the bottom plate (1), a sliding groove is formed in an upper side supporting plate of the first fixing frame (2), a threaded block (4) is slidably arranged in the sliding groove of the upper side supporting plate of the first fixing frame (2), the bottom end of the threaded block (4) penetrates through the upper side supporting plate of the first fixing frame (2) and is fixedly connected with a second fixing frame (5), a third air cylinder (6) is fixedly arranged at the bottom end of the second fixing frame (5), a connecting plate (7) is fixedly connected with the bottom end of the third air cylinder (6), baffle plates (9) are respectively arranged at the front side and the rear side of the bottom end of the connecting plate (7), a gear (11) is arranged between the baffle plates (9), and, the gear (11) is arranged between the baffle plates (9) through a supporting shaft, a drilling machine (14) is fixedly connected to the bottom side of the supporting shaft through a connecting rod, a rack (12) is meshed to the upper end of the gear (11), a threaded hole is formed in the connecting plate (7), a second bolt (10) is inserted into the threaded hole of the connecting plate (7), and the bottom end of the second bolt (10) penetrates through the connecting plate (7) and is movably connected with the upper end of the rack (12).
3. The drilling device for processing the door and window as claimed in claim 2, wherein side supporting rods are arranged on the left side and the right side of the bottom end of the second fixing frame (5), through holes are arranged on the left side and the right side of the connecting plate (7), the side supporting rods of the second fixing frame (5) are inserted into the through holes of the connecting plate (7), and scale marks (13) are arranged on the side supporting rods of the second fixing frame (5).
4. The drilling device for processing the door and the window as claimed in claim 1, wherein a cylinder four (23) is fixedly arranged at the upper end of the bottom plate (1) between the clamping seats (17), and a support plate two (24) is fixedly arranged at the upper end of the cylinder four (23).
5. The drilling device for processing the door and the window as claimed in claim 4, wherein the supporting surfaces of the clamping seat (17) and the second supporting plate (24) are respectively fixedly provided with a rubber pad (21).
6. The drilling device for processing the door and window as claimed in claim 1, wherein supporting columns (25) are fixedly arranged at four corners of the bottom end of the bottom plate (1), the bottom ends of the supporting columns (25) are inserted into the sleeves (26), a plurality of positioning holes are longitudinally formed in the peripheral sides of the supporting columns (25), a positioning hole is correspondingly formed in the peripheral side wall of each sleeve (26), and the bolts three (8) penetrate through the positioning holes of the sleeves (26) and are inserted into the positioning holes of the supporting columns (25).
7. The drilling device for processing the door and the window as claimed in claim 2, wherein a screw rod (3) is arranged on the upper side of the upper side support plate of the first fixing frame (2), a rotating handle II is fixedly connected to one end of the screw rod (3), a threaded hole is formed in the upper side of the threaded block (4), and the screw rod (3) is inserted into the threaded hole of the threaded block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011086710.2A CN112238235A (en) | 2020-10-12 | 2020-10-12 | Drilling equipment is used in door and window processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011086710.2A CN112238235A (en) | 2020-10-12 | 2020-10-12 | Drilling equipment is used in door and window processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112238235A true CN112238235A (en) | 2021-01-19 |
Family
ID=74168930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011086710.2A Withdrawn CN112238235A (en) | 2020-10-12 | 2020-10-12 | Drilling equipment is used in door and window processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112238235A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894584A (en) * | 2021-10-30 | 2022-01-07 | 浙江吉尚汽车部件有限公司 | Pump body mounting hole adds clamping apparatus device |
-
2020
- 2020-10-12 CN CN202011086710.2A patent/CN112238235A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894584A (en) * | 2021-10-30 | 2022-01-07 | 浙江吉尚汽车部件有限公司 | Pump body mounting hole adds clamping apparatus device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210119 |
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| WW01 | Invention patent application withdrawn after publication |