JPS573994A - Rotary excavation - Google Patents
Rotary excavationInfo
- Publication number
- JPS573994A JPS573994A JP7571380A JP7571380A JPS573994A JP S573994 A JPS573994 A JP S573994A JP 7571380 A JP7571380 A JP 7571380A JP 7571380 A JP7571380 A JP 7571380A JP S573994 A JPS573994 A JP S573994A
- Authority
- JP
- Japan
- Prior art keywords
- rotary excavation
- excavation
- rotary
- 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
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7571380A JPS573994A (en) | 1980-06-04 | 1980-06-04 | Rotary excavation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7571380A JPS573994A (en) | 1980-06-04 | 1980-06-04 | Rotary excavation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS573994A true JPS573994A (en) | 1982-01-09 |
Family
ID=13584153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7571380A Pending JPS573994A (en) | 1980-06-04 | 1980-06-04 | Rotary excavation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS573994A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022054937A1 (en) * | 2020-09-14 | 2022-03-17 | 聡 安斎 | Ground drilling device |
-
1980
- 1980-06-04 JP JP7571380A patent/JPS573994A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022054937A1 (en) * | 2020-09-14 | 2022-03-17 | 聡 安斎 | Ground drilling device |
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