Ribbon cassette for typewriter
USD286057S · kind S · design
8Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1984 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | Oct 7, 2000 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.