3557657

Information

• Patent Grant
• 3557657

• References
• Source

• Patent Number

  3,557,657

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1971
  53 years ago

• CPC

  • B23C3/00 - Milling particular work Special milling operations Machines therefor
  • B23C3/10 - Relief milling
  • Y10T409/300168 - with means to regulate operation by use of templet, card, or other replaceable information supply

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 470 - Threaded, headed fastener, or washer making: process and apparatus