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Automatic Electric Switch

Description: Patent for an automatic electric switch. This invention consists of a series of switches and a rotary switch run by electromagnetic key operating motor. Illustration included.
Date: December 15, 1903
Creator: Guthrie, William S.
Partner: UNT Libraries Government Documents Department

Massage-Machine.

Description: Patent for a massage machine, which can dispense a liquid antiseptic for softening the skin.
Date: October 15, 1907
Creator: Davenport, Walter D.
Partner: UNT Libraries Government Documents Department
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