Forgery-resistant impact printing with matrix printer

Details Forgery-resistant impact printing with matrix printer Forgery-resistant impact printing with matrix printer

1975-08-11

1977-08-02

Coven, Edward M.

Textiles: fiber preparation

283 9R, B41J 770

Patent

active

040390667

ABSTRACT:
A matrix printer and method for printing characters so as to reduce the likelihood of forgery by printing both the desired character and its complement on the same medium.

REFERENCES:
patent: 1002600 (1911-09-01), Morris et al.
patent: 2243284 (1941-05-01), Niece
patent: 2350893 (1944-06-01), Hofgaard
patent: 3034806 (1962-05-01), Squires
patent: 3675948 (1972-07-01), Wicker
patent: 3687256 (1972-08-01), Jones
patent: 3719262 (1973-03-01), Taplin
patent: 3814227 (1974-06-01), Hurd et al.

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