3 Matching Results
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Bedclothes Clamp
Patent for a bedclothes clamp to hold covers on a bed.
Date:
December 3, 1912
Creator:
Giordano, Anthony
System:
The Portal to Texas History
Wireless Break-Key
Patent for a wireless break key that allows a station to just have one aerial line and prevents burn out of the machinery and injury to operators while transmitting messages faster than other wireless devices.
Date:
December 31, 1912
Creator:
Mobley, Grier P.
System:
The Portal to Texas History
Gate
Patent for a gate. This invention allows a movable gate to hang on ball bearing hangers without sagging. Illustrations included.
Date:
December 3, 1912
Creator:
Wade, William & Peterson, Mack C.
System:
The Portal to Texas History