File:Morgan signal.jpg
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Summary
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Patent drawing for Garrett A. Morgan's traffic signal, US patent 1,475,024, Nov. 20 1923. Retrieved directly from the US Patent and Trademark Office. Copyright law (17 U.S.C. § 105) states that all materials created by the United States government are in the public domain. | ||
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Licensing
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:32, 7 July 2007 | ![]() | 825 × 1,368 (157 KB) | Jeeny (talk | contribs) | Oops, and straighten |
23:30, 7 July 2007 | ![]() | 849 × 1,389 (171 KB) | Jeeny (talk | contribs) | cropped extra white space | |
15:25, 20 February 2007 | ![]() | 938 × 1,481 (226 KB) | Clevelander96 (talk | contribs) | Patent drawing for Garrett A. Morgan's traffic signal, US patent 1,475,024, Nov. 20 1923. Retrieved directly from the US Patent and Trademark Office. Copyright law (17 U.S.C. § 105) states that all materials created by the United States government are i |
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