Lloyd Groff Copeman - Patents

Patents

11 March 1913 U.S. Patent 1,055,446 Thermostat and thermometer
5 August 1913 U.S. Patent 1,069,531 Electric switch
28 July 1914 U.S. Patent 1,104,718 Time-operating mechanism for electric switches
25 August 1914 U.S. Patent 1,108,552 Toast turner
25 August 1914 U.S. Patent 1,108,553 Toast turner
25 August 1914 U.S. Patent 1,108,554 Toaster
6 October 1914 U.S. Patent 1,113,154 Safety device for electrically heated cooking apparatus

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