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4 Matching Results
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Railway-Track Brace
Patent for a brace for railway tracks. Illustrations included.
Date:
December 24, 1912
Creator:
Reid, John M.
System:
The Portal to Texas History
Listing-Plow.
Patent for a listing plow that can be used in any type of soil.
Date:
September 24, 1907
Creator:
Persson, Gottfrid
System:
The Portal to Texas History
Nut-Lock.
Patent for new qualities of nut-lock security, efficiency, and convenience, including illustrations.
Date:
April 24, 1906
Creator:
Payne, Lewis.
System:
The Portal to Texas History
Improvement in Pen-Holders.
Patent for new improvements on the design of the pen-holder, including illustrations.
Date:
January 24, 1871
Creator:
George, Alfred M.
System:
The Portal to Texas History