2451790

Information

• Patent Grant
• 2451790

• References
• Source

• Patent Number

  2,451,790

• Date Filed

  Not available

• Date Issued

  Tuesday, October 19, 1948
  76 years ago

• CPC

  • G06K1/00 - Methods or arrangements for marking the record carrier in digital fashion
  • G06K1/025 - Details

• US Classifications

  • 346 - Recorders