Fingerprint classification by coordinate system

• US 3,419,287 A
• Filed: 12/08/1965
• Issued: 12/31/1968
• Est. Priority Date: 12/08/1965
• Status: Expired due to Term

• Current Assignee: Donald D. Rudie
• Original Assignee: Donald D. Rudie
• Inventors: Rudie, Donald D.
• Application Number:
  US04/512,397
• Time in Patent Office: 1,119 Days
• US Class Current: 283/69
• CPC Class Codes: B42D 25/00 Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof printing processes to produce identification or security features B41M3/14
• CPC Class Codes: B42D 25/318 Signatures
• CPC Class Codes: G06V 40/1347 Preprocessing; Feature extraction

Claims