3706074

Information

• Patent Grant
• 3706074

• References
• Source

• Patent Number

  3,706,074

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1972
  51 years ago

• CPC

  • G06K1/04 - controlled by sensing markings on the record carrier being punched

• US Classifications

  • 346 - Recorders