Combined notebook, calculator and casing therefor

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

1984-07-10

1987-08-04

Ansher, Bernard

Office supplies; artists and teachers materials

Book, album or cover

Patent

active

D02912090

REFERENCES:
patent: D245458 (1977-08-01), Hauss et al.
patent: D248994 (1978-08-01), Ikeda
patent: D266172 (1982-09-01), Fraser et al.
patent: D268346 (1983-03-01), Kobayashi
patent: D268347 (1983-03-01), Marsh
patent: D273502 (1984-04-01), Sakata
patent: 1221737 (1917-04-01), Hotchkiss
patent: 2083432 (1937-06-01), Coleman
patent: 4075702 (1978-02-01), Davies

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