CH77138A - Bohrkopf - Google Patents
BohrkopfInfo
- Publication number
- CH77138A CH77138A CH77138A CH77138DA CH77138A CH 77138 A CH77138 A CH 77138A CH 77138 A CH77138 A CH 77138A CH 77138D A CH77138D A CH 77138DA CH 77138 A CH77138 A CH 77138A
- Authority
- CH
- Switzerland
- Prior art keywords
- drill head
- drill
- head
- Prior art date
Links
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH77138T | 1917-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH77138A true CH77138A (de) | 1918-03-01 |
Family
ID=4329348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH77138A CH77138A (de) | 1917-07-31 | 1917-07-31 | Bohrkopf |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH77138A (de) |
-
1917
- 1917-07-31 CH CH77138A patent/CH77138A/de unknown
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