JPS556864Y2 - - Google Patents
Info
- Publication number
- JPS556864Y2 JPS556864Y2 JP1976064465U JP6446576U JPS556864Y2 JP S556864 Y2 JPS556864 Y2 JP S556864Y2 JP 1976064465 U JP1976064465 U JP 1976064465U JP 6446576 U JP6446576 U JP 6446576U JP S556864 Y2 JPS556864 Y2 JP S556864Y2
- Authority
- JP
- Japan
- 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
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1976064465U JPS556864Y2 (en) | 1976-05-20 | 1976-05-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1976064465U JPS556864Y2 (en) | 1976-05-20 | 1976-05-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52155701U JPS52155701U (en) | 1977-11-26 |
JPS556864Y2 true JPS556864Y2 (en) | 1980-02-15 |
Family
ID=28528621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1976064465U Expired JPS556864Y2 (en) | 1976-05-20 | 1976-05-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS556864Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE543092C2 (en) * | 2018-05-21 | 2020-10-06 | Epiroc Rock Drills Ab | System for drill bit change in a drilling rig, drilling rig comprising such a system, and a method for changing drill bits using such a system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2972388A (en) * | 1953-08-14 | 1961-02-21 | Bucyrus Erie Co | Well drill pipe-handling apparatus |
-
1976
- 1976-05-20 JP JP1976064465U patent/JPS556864Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2972388A (en) * | 1953-08-14 | 1961-02-21 | Bucyrus Erie Co | Well drill pipe-handling apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS52155701U (en) | 1977-11-26 |