1881810

Information

• Patent Grant
• 1881810

• References
• Source

• Patent Number

  1,881,810

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1932
  92 years ago

• CPC

  • G04C15/0072 - Setting the time-indicating means
  • Y10T307/615 - Substitute or emergency source

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 370 - Multiplex communications
  • 968 - Horology