JPH0277378U - - Google Patents
Info
- Publication number
- JPH0277378U JPH0277378U JP15666688U JP15666688U JPH0277378U JP H0277378 U JPH0277378 U JP H0277378U JP 15666688 U JP15666688 U JP 15666688U JP 15666688 U JP15666688 U JP 15666688U JP H0277378 U JPH0277378 U JP H0277378U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- inner tube
- excavation
- drilling machine
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15666688U JPH063249Y2 (ja) | 1988-12-02 | 1988-12-02 | 穿孔機の元押し装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15666688U JPH063249Y2 (ja) | 1988-12-02 | 1988-12-02 | 穿孔機の元押し装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0277378U true JPH0277378U (cs) | 1990-06-13 |
| JPH063249Y2 JPH063249Y2 (ja) | 1994-01-26 |
Family
ID=31435409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15666688U Expired - Lifetime JPH063249Y2 (ja) | 1988-12-02 | 1988-12-02 | 穿孔機の元押し装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH063249Y2 (cs) |
-
1988
- 1988-12-02 JP JP15666688U patent/JPH063249Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH063249Y2 (ja) | 1994-01-26 |
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