File:A. Betts Devices for Changing the Speed of Machinery - DPLA - 320846f5a0de7214a56ebe367df44f27 (page 2).jpg
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editA. Betts Devices for Changing the Speed of Machinery
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Creator InfoField | Department of the Interior. Patent Office. (1849 - 1925) | |||||||||||||
Title |
A. Betts Devices for Changing the Speed of Machinery |
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Date |
11 November 1873 date QS:P571,+1873-11-11T00:00:00Z/11 |
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institution QS:P195,Q59661038 |
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Permission (Reusing this file) |
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current | 04:55, 19 July 2023 | ![]() | 3,507 × 5,043 (2.02 MB) | DPLA bot (talk | contribs) | Uploading DPLA ID "320846f5a0de7214a56ebe367df44f27". |
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