1147993

Information

• Patent Grant
• 1147993

• References
• Source

• Patent Number

  1,147,993

• Date Filed

  Not available

• Date Issued

  Tuesday, July 27, 1915
  109 years ago

• CPC

  • B23D45/003 - for particular purposes
  • B23G9/002 - Slotting screw heads or shanks
  • Y10T409/4021 - with safety means for overload or safety interlock
  • Y10T409/4028 - Means for cutting groove
  • Y10T409/403675 - with means to cyclically manipulate cutter or cutter support
  • Y10T409/40455 - with means to advance, infeed, or manipulate work

• US Classifications

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