1423957

Information

• Patent Grant
• 1423957

• References
• Source

• Patent Number

  1,423,957

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1922
  102 years ago

• CPC

  • H01K1/22 - Lamp stems
  • H01J5/32 - Seals for leading-in conductors
  • H01K3/00 - Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof

• US Classifications

  • 065 - Glass manufacturing