JPS6420934U - - Google Patents
Info
- Publication number
- JPS6420934U JPS6420934U JP11140987U JP11140987U JPS6420934U JP S6420934 U JPS6420934 U JP S6420934U JP 11140987 U JP11140987 U JP 11140987U JP 11140987 U JP11140987 U JP 11140987U JP S6420934 U JPS6420934 U JP S6420934U
- Authority
- JP
- Japan
- Prior art keywords
- detection sensor
- drilling unit
- perpendicularity detection
- replaceable
- drill
- 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 4
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11140987U JPS6420934U (en]) | 1987-07-22 | 1987-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11140987U JPS6420934U (en]) | 1987-07-22 | 1987-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6420934U true JPS6420934U (en]) | 1989-02-01 |
Family
ID=31349427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11140987U Pending JPS6420934U (en]) | 1987-07-22 | 1987-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6420934U (en]) |
-
1987
- 1987-07-22 JP JP11140987U patent/JPS6420934U/ja active Pending