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USD306593S · kind S · design
4Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1986 |
| Grant date | Mar 13, 1990 |
| Priority date | — |
| Expiry date | Mar 13, 2004 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.