2215462

Information

• Patent Grant
• 2215462

• References
• Source

• Patent Number

  2,215,462

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1940
  84 years ago

• CPC

  • G03D15/006 - Retouching apparatus
  • B43L5/007 - drawing copying devices using a transparency

• US Classifications

  • 396 - Photography
  • 108 - Horizontally supported planar surfaces