3480764

Information

• Patent Grant
• 3480764

• References
• Source

• Patent Number

  3,480,764

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1969
  55 years ago

• CPC

  • G06K21/04 - in which coincidence of markings is sensed optically
  • G06K21/02 - in which coincidence of markings is sensed mechanically

• US Classifications

  • 235 - Registers