JPS6457191U - - Google Patents
Info
- Publication number
- JPS6457191U JPS6457191U JP15168987U JP15168987U JPS6457191U JP S6457191 U JPS6457191 U JP S6457191U JP 15168987 U JP15168987 U JP 15168987U JP 15168987 U JP15168987 U JP 15168987U JP S6457191 U JPS6457191 U JP S6457191U
- Authority
- JP
- Japan
- Prior art keywords
- kelly bar
- mast
- supported
- movable
- drive unit
- 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
- 238000009412 basement excavation Methods 0.000 claims 3
- 239000003638 chemical reducing agent Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987151689U JPH0513830Y2 (hu) | 1987-10-05 | 1987-10-05 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987151689U JPH0513830Y2 (hu) | 1987-10-05 | 1987-10-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6457191U true JPS6457191U (hu) | 1989-04-10 |
JPH0513830Y2 JPH0513830Y2 (hu) | 1993-04-13 |
Family
ID=31425956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987151689U Expired - Lifetime JPH0513830Y2 (hu) | 1987-10-05 | 1987-10-05 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0513830Y2 (hu) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007231681A (ja) * | 2006-03-03 | 2007-09-13 | Nippon Sharyo Seizo Kaisha Ltd | オーガ用変速装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040402U (hu) * | 1973-08-03 | 1975-04-24 | ||
JPS5571748U (hu) * | 1978-11-02 | 1980-05-17 | ||
JPS58156687A (ja) * | 1982-03-12 | 1983-09-17 | 日立建機株式会社 | ア−スドリルにおけるスラスタ−自動復帰装置 |
JPS58180989U (ja) * | 1982-12-09 | 1983-12-02 | 西尾 佳一 | ア−スドリル装置 |
JPS6091693U (ja) * | 1983-11-25 | 1985-06-22 | 日本基礎技術株式会社 | ボーリングマシン用バケツト |
-
1987
- 1987-10-05 JP JP1987151689U patent/JPH0513830Y2/ja not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040402U (hu) * | 1973-08-03 | 1975-04-24 | ||
JPS5571748U (hu) * | 1978-11-02 | 1980-05-17 | ||
JPS58156687A (ja) * | 1982-03-12 | 1983-09-17 | 日立建機株式会社 | ア−スドリルにおけるスラスタ−自動復帰装置 |
JPS58180989U (ja) * | 1982-12-09 | 1983-12-02 | 西尾 佳一 | ア−スドリル装置 |
JPS6091693U (ja) * | 1983-11-25 | 1985-06-22 | 日本基礎技術株式会社 | ボーリングマシン用バケツト |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007231681A (ja) * | 2006-03-03 | 2007-09-13 | Nippon Sharyo Seizo Kaisha Ltd | オーガ用変速装置 |
Also Published As
Publication number | Publication date |
---|---|
JPH0513830Y2 (hu) | 1993-04-13 |
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