1527932

Information

• Patent Grant
• 1527932

• References
• Source

• Patent Number

  1,527,932

• Date Filed

  Not available

• Date Issued

  Tuesday, February 24, 1925
  100 years ago

• CPC

  • G01C19/40 - for control by signals from a master compass
  • H01J17/24 - Means for absorbing or adsorbing gas

• US Classifications

  • 340 - Communications: electrical
  • 200 - Electricity: circuit makers and breakers