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Wagon-Tongue.
Patent for "new and useful Improvements in Wagon-Tongues, of which the following is a specification, reference being had therein to the accompanying drawings." (lines 6-9).
Date:
July 13, 1915
Creator:
Zimmer, Henry C.
System:
The Portal to Texas History
Calculator
Patent for a calculator. Illustrations included.
Date:
September 13, 1910
Creator:
Goss, George Wilson
System:
The Portal to Texas History