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Typewriter for writing the chinese language
United States Patent 2471807
US Patent References:
/1169739.html
- - 1169739
/1194587.html
- - 1194587
/1489616.html
- - 1489616
Typewriting machine
- - 1600494
/1646407.html
- - 1646407
Inventors:
Tisheng, Yen
Publication Date:
05/31/1949
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Download PDF 2471807
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Assignee:
Tisheng, Yen
Primary Class:
400/110
Other Classes:
400/484
International Classes:
B41J3/01
;
B41J3/00