1756948

Information

• Patent Grant
• 1756948

• References
• Source

• Patent Number

  1,756,948

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1930
  94 years ago

• CPC

  • B61L5/1854 - Mounting and focussing of the light source in a lamp, fixing means

• US Classifications

  • 356 - Optics: measuring and testing
  • 362 - Illumination