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Automatic Electric Switch
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.
System:
The Portal to Texas History
Massage-Machine.
Patent for a massage machine, which can dispense a liquid antiseptic for softening the skin.
Date:
October 15, 1907
Creator:
Davenport, Walter D.
System:
The Portal to Texas History