2534961

Information

• Patent Grant
• 2534961

• References
• Source

• Patent Number

  2,534,961

• Date Filed

  Not available

• Date Issued

  Tuesday, December 19, 1950
  74 years ago

• CPC

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

• US Classifications

  • 355 - Photocopying
  • 033 - Geometrical instruments
  • 040 - Card, picture, or sign exhibiting