Stamp such as a postage stamp and a method for producing it

Details Stamp such as a postage stamp and a method for producing it Stamp such as a postage stamp and a method for producing it

1992-07-31

1993-12-07

Bell, Paul A.

Printed matter

Stamp

283 82, 283 83, 283 92, 283 94, B42D 1500

Patent

active

052677540

ABSTRACT:
Stamps such as postage stamps, fee stamps, etc., involve the problem of being machine testable with respect to their position on the carrier and their authenticity, and of assuring that they can only be used once. A stamp is proposed with characterizing printing thereon and an adhesive layer for attaching it to a carrier, said stamp containing a machine-testable marking material suitable for automatic processing, the marking material being provided in the adhesive layer.

REFERENCES:
patent: 3105906 (1963-10-01), Burkhardt et al.
patent: 3136424 (1964-06-01), Silverschotz
patent: 3565463 (1971-02-01), Taylor
patent: 4089995 (1978-05-01), Ferro et al.
patent: 4451521 (1984-05-01), Kaule et al.

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