2858743

Information

• Patent Grant
• 2858743

• References
• Source

• Patent Number

  2,858,743

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1958
  66 years ago

• CPC

  • B23Q35/20 - with special means for varying the ratio of reproduction
  • Y10T409/301512 - including plural cutters

• US Classifications

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