936973

Information

• Patent Grant
• 936973

• References
• Source

• Patent Number

  936,973

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1909
  115 years ago

• CPC

  • B23F7/00 - Making herringbone gear teeth
  • B23F5/205 - with plural tools
  • B23F5/22 - the tool being a hob for making spur gears
  • Y10T409/102385 - Plural hobs
  • Y10T409/10318 - Vertically

• US Classifications

  • 409 - Gear cutting, milling, or planing