2744073

Information

• Patent Grant
• 2744073

• References
• Source

• Patent Number

  2,744,073

• Date Filed

  Not available

• Date Issued

  Tuesday, May 1, 1956
  68 years ago

• CPC

  • H01J1/144 - with other metal oxides as an emissive material

• US Classifications

  • 252 - Compositions