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Pianoforte-Action
Patent for support for the damper and spring for piano pedals. Illustrations included.
Date:
August 30, 1910
Creator:
Snyder, George C.
System:
The Portal to Texas History
Pipe-Clamp
Patent for a pipe clamp for lifting and placing pipes and drill rods into and out of wells. Illustrations included.
Date:
March 29, 1910
Creator:
Rountree, Joseph G.
System:
The Portal to Texas History