Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1988-11-30
1991-01-22
Holtje, Nelson C.
Printing and office machinery
Typewriter or calculator
Element or attachment
Patent
active
D03140059
REFERENCES:
patent: 4696590 (1987-09-01), Bierhoff et al.
patent: 4764041 (1988-08-01), Bierhoff
Goth Toshihiko
Hanma Kentaro
Narui Yoichi
Okunomiya Seiji
Ozawa Naohiro
Hitachi , Ltd.
Holtje Nelson C.
Vegnar Caron D.
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