Calculator for a shopping cart

Details Calculator for a shopping cart Calculator for a shopping cart

1990-09-18

1992-08-11

Holtje, Nelson C.

Printing and office machinery

Typewriter or calculator

Calculator

D18 6

Patent

active

D03286070

REFERENCES:
patent: D227770 (1973-07-01), Yamamoto
patent: D287370 (1986-12-01), Stoll
patent: 3314601 (1967-04-01), Voo
patent: 4334278 (1982-06-01), Marmon
patent: 4446528 (1984-05-01), Marmon
patent: 4450994 (1984-05-01), Holland
patent: 4454414 (1984-06-01), Benton
patent: 4458320 (1984-07-01), Sutton
patent: 4496058 (1985-01-01), Harris
patent: 4512504 (1985-04-01), Owlett
patent: 4685701 (1987-08-01), Amundson
patent: 4802575 (1989-02-01), Martin
patent: 4858353 (1989-08-01), Krebs
patent: 4892192 (1990-01-01), Hague
patent: 4901901 (1990-02-01), Reitenour
patent: 4954003 (1990-09-01), Shea
patent: 5048736 (1991-09-01), Anatra
VM & SD Magazine; May 1989; p. 63; Calculated P-O-P top of page.
"ShopCal" brochure.

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