2541426

Information

• Patent Grant
• 2541426

• References
• Source

• Patent Number

  2,541,426

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1951
  74 years ago

• CPC

  • G08B9/04 - Means for recording operation of the apparatus

• US Classifications

  • 346 - Recorders
  • 340 - Communications: electrical