2544883

Information

• Patent Grant
• 2544883

• References
• Source

• Patent Number

  2,544,883

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1951
  73 years ago

• CPC

  • G03B27/28 - Edge-masking devices
  • Y10S33/09 - Rectangular proportioner

• US Classifications

  • 355 - Photocopying
  • 033 - Geometrical instruments