717167

Information

• Patent Grant
• 717167

• References
• Source

• Patent Number

  717,167

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1902
  122 years ago

• CPC

  • B23F5/22 - the tool being a hob for making spur gears
  • Y10T409/102544 - including infeed means
  • Y10T409/107473 - Making a noncircular gear, worm, rotor, or a planar-faced gear

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 451 - Abrading