Recording instrument
USD243021S · kind S · design
1Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1975 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | Jan 11, 1991 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.