2351031

Information

• Patent Grant
• 2351031

• References
• Source

• Patent Number

  2,351,031

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1944
  80 years ago

• CPC

  • B43L5/007 - drawing copying devices using a transparency

• US Classifications

  • 108 - Horizontally supported planar surfaces