Electronic calculator having the functions of telephone book, ad

Details Electronic calculator having the functions of telephone book, ad Electronic calculator having the functions of telephone book, ad

1994-11-01

1996-02-27

Douglas, Alan P.

Printing and office machinery

Typewriter or calculator

Combined

Patent

active

D03674940

REFERENCES:
patent: D354072 (1995-01-01), Yatabe
patent: D354073 (1995-01-01), Shigemura
patent: D354075 (1995-01-01), Takahata et al.

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