Calculator

Details Calculator Calculator

1975-06-25

1977-01-25

Mercer, Susie J.

Lighting

Light source

Electric light bulb

D1801

Patent

active

D02431912

REFERENCES:
patent: D226858 (1973-05-01), Liljenwall
patent: D236485 (1975-08-01), Mox
Merchandising Week, Jan. 7, 1974, p. 3, Bowmar Calculator, left end upper row.

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