3618072

Information

• Patent Grant
• 3618072

• References
• Source

• Patent Number

  3,618,072

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1971
  53 years ago

• CPC

  • G09G3/08 - using incandescent filaments
  • G09F9/307 - being incandescent filaments

• US Classifications

  • 340 - Communications: electrical
  • 313 - Electric lamp and discharge devices