684634

Information

• Patent Grant
• 684634

• References
• Source

• Patent Number

  684,634

• Date Filed

  Not available

• Date Issued

  Tuesday, October 15, 1901
  123 years ago

• CPC

  • B23F5/22 - the tool being a hob for making spur gears
  • Y10T409/103339 - to infeed radially of axis of work rotation

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 269 - Work holders