Automatic coding system
United States Patent 2788878
US Patent References:
Typewriter punch
- - 2131914

Selective printing and punching machine
- - 2431714

Automatic typewriter
- - 2605879


Inventors:
Gould, Merle E.
Publication Date:
04/16/1957
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Assignee:
SELF WINDING CLOCK COMPANY INC
Primary Class:
400/71
Other Classes:
400/317, 400/184, 400/314.100, 400/474, 400/289, 178/17R, 400/279, 400/479