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Lock Nut
Patent for a lock nut. Illustration included.
Date:
June 2, 1908
Creator:
Mathis, John M.
System:
The Portal to Texas History
Combination Tool
Patent for a combination tool. "The object of the invention is in a ready, cheap, thoroughly-feasible and practical manner and in small compass to combine a rule square, bevel, miter-gage, level, and plumb, the parts to be so combined and arranged as to permit of the use of one without interference with the others" (line 9-15) illustration included.
Date:
July 7, 1903
Creator:
Chambers, Silas
System:
The Portal to Texas History
Pipe-Clamp.
Patent for "a new and useful pipe clamp" (line 5), including illustration and instructions.
Date:
August 28, 1900
Creator:
Stewart, Warren Walter
System:
The Portal to Texas History