1969089

Information

• Patent Grant
• 1969089

• References
• Source

• Patent Number

  1,969,089

• Date Filed

  Not available

• Date Issued

  Tuesday, August 7, 1934
  90 years ago

• CPC

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

• US Classifications

  • 246 - Railway switches and signals
  • 362 - Illumination