Combined notebook, calculator and casing therefor

Details Combined notebook, calculator and casing therefor Combined notebook, calculator and casing therefor

1984-07-10

1987-06-16

Ansher, Bernard

Office supplies; artists and teachers materials

Book, album or cover

Patent

active

D02903750

REFERENCES:
patent: D246205 (1977-10-01), Lewis
patent: D273301 (1984-04-01), Sawada
patent: D274179 (1984-06-01), Siwula
patent: 982758 (1911-01-01), Anderson
patent: 2108015 (1938-02-01), Kalish
patent: 3334921 (1967-08-01), Fischer
patent: 4017725 (1977-04-01), Roen
patent: 4222109 (1980-09-01), Siwula

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