JPS61164388U - - Google Patents
Info
- Publication number
- JPS61164388U JPS61164388U JP4601685U JP4601685U JPS61164388U JP S61164388 U JPS61164388 U JP S61164388U JP 4601685 U JP4601685 U JP 4601685U JP 4601685 U JP4601685 U JP 4601685U JP S61164388 U JPS61164388 U JP S61164388U
- Authority
- JP
- Japan
- Prior art keywords
- head
- circumferential surface
- outer circumferential
- knife base
- rock
- 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.)
- Granted
Links
- 239000011435 rock Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985046016U JPH0245352Y2 (es) | 1985-03-29 | 1985-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985046016U JPH0245352Y2 (es) | 1985-03-29 | 1985-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61164388U true JPS61164388U (es) | 1986-10-11 |
| JPH0245352Y2 JPH0245352Y2 (es) | 1990-11-30 |
Family
ID=30560030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985046016U Expired JPH0245352Y2 (es) | 1985-03-29 | 1985-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0245352Y2 (es) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5546294A (en) * | 1978-09-22 | 1980-03-31 | Du Pont | Gold conductor composition |
-
1985
- 1985-03-29 JP JP1985046016U patent/JPH0245352Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5546294A (en) * | 1978-09-22 | 1980-03-31 | Du Pont | Gold conductor composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0245352Y2 (es) | 1990-11-30 |