1945190

Information

• Patent Grant
• 1945190

• References
• Source

• Patent Number

  1,945,190

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1934
  90 years ago

• CPC

  • B61L5/1845 - Optical systems, lenses

• US Classifications

  • 340 - Communications: electrical
  • 362 - Illumination