2770712

Information

• Patent Grant
• 2770712

• References
• Source

• Patent Number

  2,770,712

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1956
  68 years ago

• CPC

  • G09F13/18 - edge-illuminated signs
  • H01K1/50 - Selection of substances for gas fillings Specified pressure thereof
  • H03J1/044 - Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination

• US Classifications

  • 362 - Illumination
  • 385 - Optical waveguides