JPS62162009U - - Google Patents
Info
- Publication number
- JPS62162009U JPS62162009U JP5092786U JP5092786U JPS62162009U JP S62162009 U JPS62162009 U JP S62162009U JP 5092786 U JP5092786 U JP 5092786U JP 5092786 U JP5092786 U JP 5092786U JP S62162009 U JPS62162009 U JP S62162009U
- Authority
- JP
- Japan
- Prior art keywords
- hole
- section
- circular cross
- drilling
- conical part
- 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
- 238000005553 drilling Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 2
- 239000006061 abrasive grain Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5092786U JPS62162009U (zh) | 1986-04-07 | 1986-04-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5092786U JPS62162009U (zh) | 1986-04-07 | 1986-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62162009U true JPS62162009U (zh) | 1987-10-15 |
Family
ID=30874731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5092786U Pending JPS62162009U (zh) | 1986-04-07 | 1986-04-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62162009U (zh) |
-
1986
- 1986-04-07 JP JP5092786U patent/JPS62162009U/ja active Pending