JPS50148203A - - Google Patents
Info
- Publication number
- JPS50148203A JPS50148203A JP5682674A JP5682674A JPS50148203A JP S50148203 A JPS50148203 A JP S50148203A JP 5682674 A JP5682674 A JP 5682674A JP 5682674 A JP5682674 A JP 5682674A JP S50148203 A JPS50148203 A JP S50148203A
- 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.)
- Granted
Links
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5682674A JPS5646036B2 (https=) | 1974-05-21 | 1974-05-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5682674A JPS5646036B2 (https=) | 1974-05-21 | 1974-05-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50148203A true JPS50148203A (https=) | 1975-11-27 |
| JPS5646036B2 JPS5646036B2 (https=) | 1981-10-30 |
Family
ID=13038170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5682674A Expired JPS5646036B2 (https=) | 1974-05-21 | 1974-05-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5646036B2 (https=) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185283A (ja) * | 1983-04-04 | 1984-10-20 | 三井石炭鉱業株式会社 | 高圧水を利用したダウンザホ−ルさく孔方法 |
| JPS60151990U (ja) * | 1984-03-15 | 1985-10-09 | 株式会社筑豊製作所 | ダウンザホ−ルハンマ− |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS501323A (https=) * | 1973-05-11 | 1975-01-08 |
-
1974
- 1974-05-21 JP JP5682674A patent/JPS5646036B2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS501323A (https=) * | 1973-05-11 | 1975-01-08 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185283A (ja) * | 1983-04-04 | 1984-10-20 | 三井石炭鉱業株式会社 | 高圧水を利用したダウンザホ−ルさく孔方法 |
| JPS60151990U (ja) * | 1984-03-15 | 1985-10-09 | 株式会社筑豊製作所 | ダウンザホ−ルハンマ− |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5646036B2 (https=) | 1981-10-30 |