JPS61188689U - - Google Patents
Info
- Publication number
- JPS61188689U JPS61188689U JP7112685U JP7112685U JPS61188689U JP S61188689 U JPS61188689 U JP S61188689U JP 7112685 U JP7112685 U JP 7112685U JP 7112685 U JP7112685 U JP 7112685U JP S61188689 U JPS61188689 U JP S61188689U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- cutting edge
- attached above
- circular ring
- letter
- 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
- 238000009412 basement excavation Methods 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7112685U JPS61188689U (de) | 1985-05-14 | 1985-05-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7112685U JPS61188689U (de) | 1985-05-14 | 1985-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61188689U true JPS61188689U (de) | 1986-11-25 |
Family
ID=30608338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7112685U Pending JPS61188689U (de) | 1985-05-14 | 1985-05-14 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61188689U (de) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5032485U (de) * | 1973-07-24 | 1975-04-09 |
-
1985
- 1985-05-14 JP JP7112685U patent/JPS61188689U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5032485U (de) * | 1973-07-24 | 1975-04-09 |