File:RU-1911-25580.jpeg
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Summary
First page of Patent RU-1911-25580 from the All-Russian Patent-Technical Library.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:47, 5 February 2024 | | 1,369 × 2,054 (512 KB) | LTA (talk | contribs) | First page of Patent RU-1911-25580 from the All-Russian Patent-Technical Library. |
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