U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 703
sJt^StL&l. … WITNESSES ■ INVENTOR BY i^yffuMAL V&s ATTORNEYS. ! PCTERS CO. PHOTO-LlTHO.. WASHINGTON. I United States Patent Office. THOMAS P. ADAMS, OF RICO, COLORADO.ELECTRIC ALARM-CLOCK. SPECIFICATION forming part of Letters Patent No. 495,287, dated April 11, 1893. Application filed May 23,1892. Serial…
Clocks and watches
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