2651889

Information

• Patent Grant
• 2651889

• References
• Source

• Patent Number

  2,651,889

• Date Filed

  Not available

• Date Issued

  Tuesday, September 15, 1953
  71 years ago

• CPC

  • B23Q35/20 - with special means for varying the ratio of reproduction
  • B24B17/04 - involving optical auxiliary means
  • Y10T409/301232 - including pantograph cutter-carrier

• US Classifications

  • 451 - Abrading
  • 356 - Optics: measuring and testing
  • 409 - Gear cutting, milling, or planing