Drum
USD245318S · kind S · design
5Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1975 |
| Grant date | Aug 9, 1977 |
| Priority date | — |
| Expiry date | Aug 9, 1991 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.