1787066

Information

• Patent Grant
• 1787066

• References
• Source

• Patent Number

  1,787,066

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1930
  94 years ago

• CPC

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

• US Classifications

  • 346 - Recorders