JPS57158487A - Automatic propelling driving device for concrete boring - Google Patents
Automatic propelling driving device for concrete boringInfo
- Publication number
- JPS57158487A JPS57158487A JP4265581A JP4265581A JPS57158487A JP S57158487 A JPS57158487 A JP S57158487A JP 4265581 A JP4265581 A JP 4265581A JP 4265581 A JP4265581 A JP 4265581A JP S57158487 A JPS57158487 A JP S57158487A
- Authority
- JP
- Japan
- Prior art keywords
- driving device
- automatic propelling
- propelling driving
- concrete boring
- boring
- 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
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4265581A JPS57158487A (en) | 1981-03-24 | 1981-03-24 | Automatic propelling driving device for concrete boring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4265581A JPS57158487A (en) | 1981-03-24 | 1981-03-24 | Automatic propelling driving device for concrete boring |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57158487A true JPS57158487A (en) | 1982-09-30 |
JPH0132357B2 JPH0132357B2 (en) | 1989-06-30 |
Family
ID=12642016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4265581A Granted JPS57158487A (en) | 1981-03-24 | 1981-03-24 | Automatic propelling driving device for concrete boring |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57158487A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5319521A (en) * | 1976-08-04 | 1978-02-22 | Mitsubishi Electric Corp | Three phase multiple inverter device |
-
1981
- 1981-03-24 JP JP4265581A patent/JPS57158487A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5319521A (en) * | 1976-08-04 | 1978-02-22 | Mitsubishi Electric Corp | Three phase multiple inverter device |
Also Published As
Publication number | Publication date |
---|---|
JPH0132357B2 (en) | 1989-06-30 |
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