2342525

Information

• Patent Grant
• 2342525

• References
• Source

• Patent Number

  2,342,525

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1944
  81 years ago

• CPC

  • G03B27/28 - Edge-masking devices

• US Classifications

  • 355 - Photocopying
  • 033 - Geometrical instruments