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United States Patent 2723740
US Patent References:
Typewriter
2188935
Power operated typewriter
2043393
Typewriting machine with power drives
1789661
Inventors:
Toeppen, Thurston H.
Publication Date:
11/15/1955
Export Citation:
Click for automatic bibliography generation
Assignee:
IBM
Primary Class:
400/368
Other Classes:
400/371
International Classes:
B41J5/28
;
B41J23/12
;
B41J5/00
;
B41J23/00
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