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Photographic-Printing Machine
Patent for a photo printing machine that can be used in dark rooms. Illustrations included.
Date:
January 2, 1912
Creator:
Higginbotham, Toliver S. & Higginbotham, Ezekiel H.
System:
The Portal to Texas History
Double-Action Ratchet
Patent for a double action ratchet for use with drills that allows them to be turned either direction.
Date:
January 21, 1913
Creator:
Skinner, James W.
System:
The Portal to Texas History