Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1991-04-30
1994-05-10
Douglas, Alan P.
Printing and office machinery
Typewriter or calculator
Element or attachment
Patent
active
D03468186
REFERENCES:
patent: D319837 (1991-09-01), Urawa
patent: 4293234 (1981-10-01), Yonkers et al.
patent: 4650355 (1987-03-01), Cassiano et al.
patent: 4732499 (1988-03-01), Nojima et al.
patent: 5051010 (1991-09-01), Stephens et al.
B. A. Pargh Co., Inc: 1985/86 Fall/Winter Catalog, p. 129 Pelikan Models P167PKN and P165PKN.
Jacobs-Gardner Office Products 1991 Catalog, pp. 511, 538.
Douglas Alan P.
Seiko Epson Corporation
Spear Robert M.
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