KR890012807U - T맞대기 용접용 백킹 - Google Patents
T맞대기 용접용 백킹Info
- Publication number
- KR890012807U KR890012807U KR2019870021925U KR870021925U KR890012807U KR 890012807 U KR890012807 U KR 890012807U KR 2019870021925 U KR2019870021925 U KR 2019870021925U KR 870021925 U KR870021925 U KR 870021925U KR 890012807 U KR890012807 U KR 890012807U
- Authority
- KR
- South Korea
- Prior art keywords
- butt welding
- welding backing
- backing
- butt
- welding
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870021925U KR900005841Y1 (ko) | 1987-12-11 | 1987-12-11 | T맞대기 용접용 백킹 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870021925U KR900005841Y1 (ko) | 1987-12-11 | 1987-12-11 | T맞대기 용접용 백킹 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890012807U true KR890012807U (ko) | 1989-08-07 |
KR900005841Y1 KR900005841Y1 (ko) | 1990-06-30 |
Family
ID=19270291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019870021925U KR900005841Y1 (ko) | 1987-12-11 | 1987-12-11 | T맞대기 용접용 백킹 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR900005841Y1 (ko) |
-
1987
- 1987-12-11 KR KR2019870021925U patent/KR900005841Y1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR900005841Y1 (ko) | 1990-06-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
REGI | Registration of establishment | ||
FPAY | Annual fee payment |
Payment date: 19990612 Year of fee payment: 10 |
|
LAPS | Lapse due to unpaid annual fee |