Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1988-03-04
1991-08-13
Holtje, Nelson C.
Printing and office machinery
Typewriter or calculator
Element or attachment
D18 22
Patent
active
D03190706
REFERENCES:
patent: D281331 (1985-11-01), Nibley et al.
patent: D283628 (1986-04-01), Hagiwara
patent: 3823808 (1974-07-01), Murata et al.
patent: 4823311 (1989-04-01), Hunter et al.
patent: 4836698 (1989-06-01), Takagi et al.
patent: 4840502 (1989-06-01), Grey
Copies of Figures from U.S. Ser. No. 931,631.
Holtje Nelson C.
Varitronic Systems, Inc.
Veynar Caron D.
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