Typewriter keyboard having thumb operated control keys
United States Patent 2958408
US Patent References:
/0964340.html
- - 0964340
/1004108.html
- - 1004108
/1215762.html
- - 1215762
Typewriting, typesetting, and similar machines
- - 2196987
Keyboard for typewriters or the like
- - 2369807
/0964340.html
- - 0964340
/1004108.html
- - 1004108
/1215762.html
- - 1215762
Typewriting, typesetting, and similar machines
- - 2196987
Keyboard for typewriters or the like
- - 2369807
Inventors:
Cantonwine, Hazel V.
Publication Date:
11/01/1960
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Export Citation:
Assignee:
Cantonwine, Hazel V.
Primary Class:
International Classes:
B41J5/10; B41J5/00
Foreign References:
| DE700558C |