Fluid flow monitor for ion exchange unit that regenerates photographic developers
USD275374S · kind S · design
0Cited by
8References
1Claims
0Family size
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Key dates
| Filing date | Feb 22, 1982 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Sep 4, 1998 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.