Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1985-10-24
1987-08-04
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Element or attachment
Patent
active
D02912082
REFERENCES:
patent: D265099 (1982-06-01), Feinstein, Jr. et al.
patent: D280641 (1985-09-01), Harden et al.
patent: 4386862 (1983-06-01), Kittel et al.
IBM Technical Disclosure Bulletin, vol. 25, No. 11A, Apr. 1983, p. 5818-Fig. 1 at top.
Takahashi Kazuaki
Tamada Kenji
Silver Seiko Limited
Zarfas Louis S,.
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