JPS61169190U - - Google Patents
Info
- Publication number
- JPS61169190U JPS61169190U JP5171685U JP5171685U JPS61169190U JP S61169190 U JPS61169190 U JP S61169190U JP 5171685 U JP5171685 U JP 5171685U JP 5171685 U JP5171685 U JP 5171685U JP S61169190 U JPS61169190 U JP S61169190U
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- ring part
- utility
- model registration
- method characterized
- 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 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 5
- 238000010008 shearing Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 description 2
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5171685U JPS61169190U (enExample) | 1985-04-09 | 1985-04-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5171685U JPS61169190U (enExample) | 1985-04-09 | 1985-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61169190U true JPS61169190U (enExample) | 1986-10-20 |
Family
ID=30571014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5171685U Pending JPS61169190U (enExample) | 1985-04-09 | 1985-04-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61169190U (enExample) |
-
1985
- 1985-04-09 JP JP5171685U patent/JPS61169190U/ja active Pending
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