03930582 is referenced by 96 patents and cites 6 patents.

To test the genuineness and/or condition of dollar bills or other substantially identical papers, one or more thickness gauges are positioned in the path of these papers and determine the deviations, if any, of the thickness of a passing specimen from a predetermined value or from the thickness of a reference specimen scanned concurrently therewith. The measured deviations are fed into a processor which counts positive or negative deviations within a multiplicity of incremental periods and determines the nature of any irregularity from the count of deviations of either sign. With three gauges measuring thickness along as many parallel tracks, the system may discriminate among such irregularities as gaps, overlappings, adhesive tape and dog-eared corners.

Title
System for testing paper money and the like
Application Number
5/470965
Publication Number
3930582
Application Date
May 17, 1974
Publication Date
January 6, 1976
Inventor
Erich Berger
Vienna
OE
Fritz Gartner
Vienna
OE
Agent
Herbert Dubno
Karl F Ross
Assignee
Oesterreichische National Bank
OE
IPC
B07B 1/15
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