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Supporting-Shelf.
Patent for a supporting shelf specifically for clocks. The supporting shelf keeps the clock balanced.
Date:
November 3, 1914
Creator:
McDonald, John A..
System:
The Portal to Texas History
Nut Lock
Patent for a mechanism to lock a nut in place on a bolt that also automatically releases when a wrench is applied to turn the nut.
Date:
August 4, 1914
Creator:
Edwards, Whitfield H.
System:
The Portal to Texas History