Electronic calculator having the functions of telephone book, ad

Printing and office machinery – Typewriter or calculator – Combined

Patent

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Details

D14100, 0801

Patent

active

D03983315

REFERENCES:
patent: D310543 (1990-09-01), Brown
patent: D324513 (1992-03-01), Sakaguchi et al.
patent: D353614 (1994-12-01), Ohno et al.
patent: D353828 (1994-12-01), Miyahara et al.
patent: D355166 (1995-02-01), Sakaguchi et al.
patent: D363505 (1995-10-01), Takahata
patent: D365842 (1996-01-01), Nakatsuka et al.
patent: D368702 (1996-04-01), Shimizu
patent: D377189 (1997-01-01), Komuta et al.

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