1643216

Information

• Patent Grant
• 1643216

• References
• Source

• Patent Number

  1,643,216

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1927
  97 years ago

• CPC

  • H01J5/30 - using packing-material
  • H01J2893/0046 - Lamp base with closure

• US Classifications

  • 174 - Electricity: conductors and insulators
  • 106 - Compositions: coating or plastic
  • 220 - Receptacles