JPS6272391U - - Google Patents
Info
- Publication number
- JPS6272391U JPS6272391U JP16072985U JP16072985U JPS6272391U JP S6272391 U JPS6272391 U JP S6272391U JP 16072985 U JP16072985 U JP 16072985U JP 16072985 U JP16072985 U JP 16072985U JP S6272391 U JPS6272391 U JP S6272391U
- Authority
- JP
- Japan
- Prior art keywords
- wedge
- liner
- groove
- type rock
- rock
- 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.)
- Granted
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16072985U JPH0237912Y2 (en:Method) | 1985-10-22 | 1985-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16072985U JPH0237912Y2 (en:Method) | 1985-10-22 | 1985-10-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6272391U true JPS6272391U (en:Method) | 1987-05-09 |
| JPH0237912Y2 JPH0237912Y2 (en:Method) | 1990-10-12 |
Family
ID=31086381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16072985U Expired JPH0237912Y2 (en:Method) | 1985-10-22 | 1985-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237912Y2 (en:Method) |
-
1985
- 1985-10-22 JP JP16072985U patent/JPH0237912Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0237912Y2 (en:Method) | 1990-10-12 |