JPS61180286U - - Google Patents
Info
- Publication number
- JPS61180286U JPS61180286U JP6054585U JP6054585U JPS61180286U JP S61180286 U JPS61180286 U JP S61180286U JP 6054585 U JP6054585 U JP 6054585U JP 6054585 U JP6054585 U JP 6054585U JP S61180286 U JPS61180286 U JP S61180286U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- body made
- polymerized
- sandwich
- outer periphery
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 2
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6054585U JPS61180286U (pt) | 1985-04-23 | 1985-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6054585U JPS61180286U (pt) | 1985-04-23 | 1985-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61180286U true JPS61180286U (pt) | 1986-11-10 |
Family
ID=30587991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6054585U Pending JPS61180286U (pt) | 1985-04-23 | 1985-04-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61180286U (pt) |
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1985
- 1985-04-23 JP JP6054585U patent/JPS61180286U/ja active Pending