3645438

Information

• Patent Grant
• 3645438

• References
• Source

• Patent Number

  3,645,438

• Date Filed

  Not available

• Date Issued

  Tuesday, February 29, 1972
  52 years ago

• CPC

  • G06K7/04 - by mechanical means
  • G06K19/063 - the carrier being marginally punched or notched
  • G06K21/02 - in which coincidence of markings is sensed mechanically

• US Classifications

  • 234 - Selective cutting