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Printing Rule and Slug and Type-Form.
Patent for rules and slugs that are quickly and easily arranged and that lock securely to make a type form, including one illustration.
Date:
January 4, 1921
Creator:
Markwell, Andrew E.
System:
The Portal to Texas History
Mold for Making Fan-Belts.
Patent for a three-piece mold which allows for fan belts to be made using a single piece of rubber or composition material. The fan belts would primarily be used in motor vehicles.
Date:
December 27, 1921
Creator:
Hibbs, Cassell D.
System:
The Portal to Texas History
Maternity and Invalid Chair.
Patent for a folding chair designed specifically for the use and comfort of the sick and disabled.
Date:
March 22, 1921
Creator:
Read, Edwin T. & Bartz, Adolph J.
System:
The Portal to Texas History