1475087

Information

• Patent Grant
• 1475087

• References
• Source

• Patent Number

  1,475,087

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1923
  101 years ago

• CPC

  • G01F23/52 - using electrically actuated indicating means
  • G01F23/50 - using mechanically actuated indicating means

• US Classifications

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