File:W. Wickersham Improvement in Time-Signals for Railroads - DPLA - c483d532e85f249cace0cbaf060f39bb (page 1).jpg
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W. Wickersham Improvement in Time-Signals for Railroads ( ) | ||||||||||||||
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Creator InfoField | Department of the Interior. Patent Office. (1849 - 1925) | |||||||||||||
Title |
W. Wickersham Improvement in Time-Signals for Railroads |
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Date |
9 July 1872 date QS:P571,+1872-07-09T00:00:00Z/11 |
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Collection |
institution QS:P195,Q59661038 |
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Source/Photographer |
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Permission (Reusing this file) |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:46, 10 November 2022 | 3,597 × 5,151 (2.72 MB) | DPLA bot (talk | contribs) | Uploading DPLA ID c483d532e85f249cace0cbaf060f39bb |
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