JPS4923410A - - Google Patents
Info
- Publication number
- JPS4923410A JPS4923410A JP6405572A JP6405572A JPS4923410A JP S4923410 A JPS4923410 A JP S4923410A JP 6405572 A JP6405572 A JP 6405572A JP 6405572 A JP6405572 A JP 6405572A JP S4923410 A JPS4923410 A JP S4923410A
- Authority
- JP
- Japan
- 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
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6405572A JPS4923410A (fr) | 1972-06-28 | 1972-06-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6405572A JPS4923410A (fr) | 1972-06-28 | 1972-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS4923410A true JPS4923410A (fr) | 1974-03-01 |
Family
ID=13247009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6405572A Pending JPS4923410A (fr) | 1972-06-28 | 1972-06-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS4923410A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54159301A (en) * | 1978-06-07 | 1979-12-17 | Schmidt Paul | Forming of both side opened underground bored hole |
JPS58138898A (ja) * | 1982-02-10 | 1983-08-17 | 新技術開発株式会社 | 衝撃式推進装置 |
JPS5986885U (ja) * | 1982-11-30 | 1984-06-12 | マスプロ電工株式会社 | 交直両用電源装置 |
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1972
- 1972-06-28 JP JP6405572A patent/JPS4923410A/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54159301A (en) * | 1978-06-07 | 1979-12-17 | Schmidt Paul | Forming of both side opened underground bored hole |
JPS58138898A (ja) * | 1982-02-10 | 1983-08-17 | 新技術開発株式会社 | 衝撃式推進装置 |
JPS5986885U (ja) * | 1982-11-30 | 1984-06-12 | マスプロ電工株式会社 | 交直両用電源装置 |