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Electric Arc Amp

Description: Patent for electric arc lamp.
Date: October 1, 1886
Creator: Crowdus, Walter A. & Sutton, Henry M.
Partner: UNT Libraries Government Documents Department

Apparatus for Applying Dry Hot Air to the Face

Description: Patent for a hot air blowing device for blowing on the face that has adjustable temperature settings.
Date: October 1, 1907
Creator: Smith, William Lee
Partner: UNT Libraries Government Documents Department
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