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Quick-Adjustable Wrench.
Patent for a quick-adjustable wrench "of novel and improved construction, as well as being thoroughly practical and efficient in use" (lines 10-14), including illustrations.
Date:
June 20, 1920
Creator:
Shoopman, Andrew
System:
The Portal to Texas History
Rail-Clamp
Patent for a rail clamp to "prevent spreading of the rails"(lines 10-11).
Date:
June 18, 1912
Creator:
Ausburn, George F.
System:
The Portal to Texas History