File:Lord Davenport patent1.pdf
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Lord_Davenport_patent1.pdf (file size: 390 KB, MIME type: application/pdf)
Summary
Copy of the Henry Davenport Bellin 1939 US patent (2146613A)
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 05:09, 13 October 2020 | (390 KB) | Chrisambarian (talk | contribs) | Copy of the Henry Davenport Bellin 1939 US patent (2146613A) |
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