1763224

Information

• Patent Grant
• 1763224

• References
• Source

• Patent Number

  1,763,224

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1930
  94 years ago

• CPC

  • H03J1/044 - Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination
  • Y10S116/39 - Dial magnifiers

• US Classifications

  • 116 - Signals and indicators
  • 359 - Optical: systems and elements