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Automatic Safety Attachment for Air-Brakes
Patent for an automatic safety attachment for air brakes that can be attached to trains and automobiles. Illustrations included.
Date:
April 11, 1911
Creator:
Hamilton, Ernest Hubbard
System:
The Portal to Texas History
Colter.
Patent for the instructions on of how to construct a Colter including illustrations.
Date:
April 25, 1916
Creator:
Elder, James Zedrick
System:
The Portal to Texas History