1932633

Information

• Patent Grant
• 1932633

• References
• Source

• Patent Number

  1,932,633

• Date Filed

  Not available

• Date Issued

  Tuesday, October 31, 1933
  91 years ago

• CPC

  • H01K3/305 - Testing of incandescent lamps

• US Classifications

  • 324 - Electricity: measuring and testing
  • 200 - Electricity: circuit makers and breakers
  • 307 - Electrical transmission or interconnection systems
  • 315 - Electric lamp and discharge devices: systems