3505502

Information

• Patent Grant
• 3505502

• References
• Source

• Patent Number

  3,505,502

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1970
  54 years ago

• CPC

  • H04H60/39 - for identifying broadcast space-time
  • G06K1/04 - controlled by sensing markings on the record carrier being punched

• US Classifications

  • 235 - Registers