JPS50157202A - - Google Patents
Info
- Publication number
- JPS50157202A JPS50157202A JP6506874A JP6506874A JPS50157202A JP S50157202 A JPS50157202 A JP S50157202A JP 6506874 A JP6506874 A JP 6506874A JP 6506874 A JP6506874 A JP 6506874A JP S50157202 A JPS50157202 A JP S50157202A
- 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 |
|---|---|---|---|
| JP6506874A JPS5410325B2 (https=) | 1974-06-10 | 1974-06-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6506874A JPS5410325B2 (https=) | 1974-06-10 | 1974-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50157202A true JPS50157202A (https=) | 1975-12-19 |
| JPS5410325B2 JPS5410325B2 (https=) | 1979-05-04 |
Family
ID=13276249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6506874A Expired JPS5410325B2 (https=) | 1974-06-10 | 1974-06-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5410325B2 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5883790A (ja) * | 1981-11-12 | 1983-05-19 | 住友電気工業株式会社 | ドリルビット |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3135341A (en) * | 1960-10-04 | 1964-06-02 | Christensen Diamond Prod Co | Diamond drill bits |
| FR2029963A5 (https=) * | 1969-03-19 | 1970-10-23 | Petroles Cie Francaise |
-
1974
- 1974-06-10 JP JP6506874A patent/JPS5410325B2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3135341A (en) * | 1960-10-04 | 1964-06-02 | Christensen Diamond Prod Co | Diamond drill bits |
| FR2029963A5 (https=) * | 1969-03-19 | 1970-10-23 | Petroles Cie Francaise |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5883790A (ja) * | 1981-11-12 | 1983-05-19 | 住友電気工業株式会社 | ドリルビット |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5410325B2 (https=) | 1979-05-04 |