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Revolving Case and Account Register
Patent for revolving case and cash register. This device is designed as an account system and provides customers with and account book for keeping records. Illustrations included.
Date:
June 25, 1912
Creator:
Trenton, Albert E.
System:
The Portal to Texas History
Door Operating Means
Patent for a mechanism to operate jail doors. The mechanism is "operated with a single movement of the hand to open and close a plurality of doors simultaneously" (14-19). Illustrations included.
Date:
June 25, 1912
Creator:
Youngblood, David Franklin
System:
The Portal to Texas History