File:Morgan signal.jpg

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Revision as of 14:45, 11 May 2007 by imported>Russell Potter (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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Morgan_signal.jpg ‎(380 × 600 pixels, file size: 30 KB, MIME type: image/jpeg)

Summary

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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