1861992

Information

• Patent Grant
• 1861992

• References
• Source

• Patent Number

  1,861,992

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1932
  92 years ago

• CPC

  • G03B27/28 - Edge-masking devices
  • Y10T83/8843 - Cam or eccentric revolving about fixed axis

• US Classifications

  • 355 - Photocopying
  • 083 - Cutting