Check calculator

Boots – shoes – and leggings

Patent

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Details

364406, G06F 738, G07G 748, G07G 1520

Patent

active

045690294

ABSTRACT:
Disclosed is a check calculator as a preferred embodiment of the present invention, which is characterized in that;

REFERENCES:
patent: 3920979 (1973-10-01), Kilby et al.
patent: 4222109 (1980-09-01), Siwula
patent: 4224675 (1980-09-01), Pinkerman
patent: 4308588 (1981-12-01), Siwula

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