JPS5433442B2 - - Google Patents
Info
- Publication number
- JPS5433442B2 JPS5433442B2 JP8740375A JP8740375A JPS5433442B2 JP S5433442 B2 JPS5433442 B2 JP S5433442B2 JP 8740375 A JP8740375 A JP 8740375A JP 8740375 A JP8740375 A JP 8740375A JP S5433442 B2 JPS5433442 B2 JP S5433442B2
- 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.)
- Expired
Links
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8740375A JPS5212716A (en) | 1975-07-18 | 1975-07-18 | Reversible pneumatic impact apparatus for drilling ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8740375A JPS5212716A (en) | 1975-07-18 | 1975-07-18 | Reversible pneumatic impact apparatus for drilling ground |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5212716A JPS5212716A (en) | 1977-01-31 |
| JPS5433442B2 true JPS5433442B2 (it) | 1979-10-20 |
Family
ID=13913897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8740375A Granted JPS5212716A (en) | 1975-07-18 | 1975-07-18 | Reversible pneumatic impact apparatus for drilling ground |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5212716A (it) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60184194A (ja) * | 1984-03-01 | 1985-09-19 | 日本シ−ルドエンジニアリング株式会社 | 平行管打込み工法 |
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1975
- 1975-07-18 JP JP8740375A patent/JPS5212716A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5212716A (en) | 1977-01-31 |