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Handle-Fastener
Patent for handle fastener for tools such as screwdrivers, chisels, and augers. Illustrations included.
Date:
February 4, 1913
Creator:
McMillan, Eugene C.
System:
The Portal to Texas History
Ratchet-Drill
Patent for adding mechanical improvements to ratchet drill tools. These improvements include improved adjustment efficiency and range.
Date:
August 12, 1913
Creator:
McMillan, Eugene C.
System:
The Portal to Texas History