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Separable Locking Rack for Driving Mechanism
Patent for separable locking rack for driving mechanism. Illustrations included.
Date:
October 25, 1910
Creator:
Brewster, Bertram F. & Wilson, Walker Scott
System:
The Portal to Texas History
Machine for Assorting, Stacking, and Counting Coins
Patent for a machine which organizes, stacks, counts, and gives the total value of a collection of coins. Illustrations included.
Date:
April 13, 1909
Creator:
Brewster, Bertram Forrest
System:
The Portal to Texas History