Portable calculating machine

Details Portable calculating machine Portable calculating machine

1977-03-21

1978-07-18

Lucas, Susan J.

Printing and office machinery

Printing equipment

Hand held or manipulated

D1801

Patent

active

D02485958

REFERENCES:
patent: D226858 (1973-05-01), Liljenwall
patent: 3887791 (1975-06-01), Kitchens
Merchandising Week, Jan. 6, 1975, p. 40, Calculator Item C.

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