Conversion lens for single-lens reflex camera
USD523057S1 · kind S1 · design
50Cited by
7References
1Claims
0Family size
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Key dates
| Filing date | Mar 3, 2005 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Jun 13, 2020 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.