2682511

Information

• Patent Grant
• 2682511

• References
• Source

• Patent Number

  2,682,511

• Date Filed

  Not available

• Date Issued

  Tuesday, June 29, 1954
  70 years ago

• CPC

  • H01J1/146 - with metals or alloys as an emissive material

• US Classifications

  • 075 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
  • 252 - Compositions
  • 313 - Electric lamp and discharge devices