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Bar code marking the surface of an object

  • US 4,810,867 A
  • Filed: 02/04/1987
  • Issued: 03/07/1989
  • Est. Priority Date: 02/04/1987
  • Status: Expired due to Term
First Claim
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1. A method for imprinting a bar code message in the surface of an object comprising the steps of,providing an object,imprinting a plurality of marks by indenting the surface of said object and forming recesses therein, said plurality of marks arranged in a plurality of substantially linear, rectangular arrays in the surface of said object, said plurality of marks in each of said rectangular arrays being in juxtaposition with adjacent marks, andspacing each imprinted substantially linear, rectangular array from each adjacent imprinted, substantially linear rectangular array a preselected distance to provide a bar code message imprinted in the surface of said object.

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