JPS63176192U - - Google Patents
Info
- Publication number
- JPS63176192U JPS63176192U JP5600687U JP5600687U JPS63176192U JP S63176192 U JPS63176192 U JP S63176192U JP 5600687 U JP5600687 U JP 5600687U JP 5600687 U JP5600687 U JP 5600687U JP S63176192 U JPS63176192 U JP S63176192U
- Authority
- JP
- Japan
- Prior art keywords
- rod
- hole
- shank
- wear
- display
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5600687U JPS63176192U (da) | 1987-04-15 | 1987-04-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5600687U JPS63176192U (da) | 1987-04-15 | 1987-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63176192U true JPS63176192U (da) | 1988-11-15 |
Family
ID=30884431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5600687U Pending JPS63176192U (da) | 1987-04-15 | 1987-04-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63176192U (da) |
-
1987
- 1987-04-15 JP JP5600687U patent/JPS63176192U/ja active Pending