Calculator for highway travel

Details Calculator for highway travel Calculator for highway travel

1983-12-19

1985-05-21

Zarfas, Louis S.

Printing and office machinery

Typewriter or calculator

Calculator

D21 13

Patent

active

D02789167

REFERENCES:
patent: D229065 (1973-11-01), Maeda
patent: D238493 (1976-01-01), Maeda
patent: D262119 (1981-12-01), Cannella
patent: D263151 (1982-02-01), Hirata et al.
patent: D268934 (1983-05-01), Walton
patent: 4022933 (1977-05-01), Shattuck
HFD-Retailing Home Furnishings, 3/30/81, section one, p. 18--Calculator at top.

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