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Bevel-Square
Patent for improvements in bevel squares used by carpenters, mechanics, and other similar work to represent the work of multiple bevels at once "to minimize and facilitate operations in fitting the parts of an objective structure together..." (Lines 19-21).
Date:
December 9, 1919
Creator:
Seay, Mathew E.
System:
The Portal to Texas History
Underreamer.
Patent for an underreamer with improved construction and increased operating efficiency; including illustrations.
Date:
December 9, 1913
Creator:
Wagner, Warren
System:
The Portal to Texas History