3484588

Information

• Patent Grant
• 3484588

• References
• Source

• Patent Number

  3,484,588

• Date Filed

  Not available

• Date Issued

  Tuesday, December 16, 1969
  54 years ago

• CPC

  • G06K21/04 - in which coincidence of markings is sensed optically
  • G06K7/10 - by electromagnetic radiation

• US Classifications

  • 235 - Registers
  • 250 - Radiant energy