Variable backspacing mechanism for proportional spacing typewriters
United States Patent 2872014
US Patent References:
/0895238.html
- - 0895238
Typewriting machine
- - 1415138
Typewriter for justifying lines
- - 2405974
/0895238.html
- - 0895238
Typewriting machine
- - 1415138
Typewriter for justifying lines
- - 2405974
Inventors:
Seyed, Khalil
Publication Date:
02/03/1959
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Assignee:
Seyed, Khalil
Primary Class:
Other Classes:
400/309
International Classes:
B41J25/04; B41J25/00