1617312

Information

• Patent Grant
• 1617312

• References
• Source

• Patent Number

  1,617,312

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1927
  98 years ago

• CPC

  • B44B3/002 - using a pantograph
  • B23Q35/20 - with special means for varying the ratio of reproduction
  • Y10T409/3014 - Pivotally supported for vertical movement
  • Y10T409/301456 - and means to counterbalance carrier

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 033 - Geometrical instruments
  • 266 - Metallurgical apparatus