JPS6210616U - - Google Patents
Info
- Publication number
- JPS6210616U JPS6210616U JP10241285U JP10241285U JPS6210616U JP S6210616 U JPS6210616 U JP S6210616U JP 10241285 U JP10241285 U JP 10241285U JP 10241285 U JP10241285 U JP 10241285U JP S6210616 U JPS6210616 U JP S6210616U
- Authority
- JP
- Japan
- Prior art keywords
- head
- hollow cylinder
- retractable
- triangular
- slightly larger
- 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
- 239000002184 metal Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 description 3
Landscapes
- Actuator (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10241285U JPS6210616U (de) | 1985-07-04 | 1985-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10241285U JPS6210616U (de) | 1985-07-04 | 1985-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6210616U true JPS6210616U (de) | 1987-01-22 |
Family
ID=30974039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10241285U Pending JPS6210616U (de) | 1985-07-04 | 1985-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6210616U (de) |
-
1985
- 1985-07-04 JP JP10241285U patent/JPS6210616U/ja active Pending