Support arm and rotary cone for modular drill bit
USD372253S · kind S · design
13Cited by
66References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1995 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Jul 30, 2010 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.