2350340

Information

• Patent Grant
• 2350340

• References
• Source

• Patent Number

  2,350,340

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1944
  80 years ago

• CPC

  • B43L5/007 - drawing copying devices using a transparency

• US Classifications

  • 108 - Horizontally supported planar surfaces
  • 362 - Illumination