Printed matter – Calendar
Patent
1975-12-10
1977-02-01
Grieb, William H.
Printed matter
Calendar
73432R, 282 20A, B42D 1500, B42D 1900
Patent
active
040058786
ABSTRACT:
A method and device are provided which cause the distortion of a signature being made on a check, credit card slip, etc. The distortion provided allows for better verification of the signature. The distortion can be an elongation of the signature, reversal of the signature, or other suitable form of forming a non-standard signature by which the authenticity of the signature can be verified.
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patent: 3721128 (1973-03-01), Thurman
patent: 3740872 (1973-06-01), Mayo
patent: 3818615 (1974-06-01), Jimenez
Grieb William H.
Hydrophilics International, Inc.
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