Electronic calculator with timepiece

Details Electronic calculator with timepiece Electronic calculator with timepiece

1979-08-03

1982-04-20

Sebastian, Leland A.

Printing and office machinery

Typewriter or calculator

Combined

D10 2, D18 7, D1801

Patent

active

D02639661

REFERENCES:
patent: D241143 (1976-08-01), Garnier
patent: D243958 (1977-04-01), Jimbo
patent: D251330 (1979-03-01), Kurosu et al.
W. Bell and Co. 1978 Catalogue, .COPYRGT.1977, p. 236, Billfold Memory Calculator in upper center.

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