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Spirally arranged bar code

  • US 5,481,100 A
  • Filed: 07/20/1994
  • Issued: 01/02/1996
  • Est. Priority Date: 04/14/1992
  • Status: Expired due to Term
First Claim
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1. A bar code device comprising,an elongated member having a circumferential surface and at least a predetermined longitudinal length, anda bar code spirally provided on the circumferential surface of the elongated member, said bar code completely surrounding an entire area of the circumferential surface of the elongated member in said predetermined longitudinal length so that when the bar code is scanned with respect to a sensor for reading the bar code in one of a longitudinal direction of the elongated member for the predetermined longitudinal length and a direction perpendicular to the longitudinal direction along the circumferential surface of the elongated member, the bar code is surely ready.

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