918171

Information

• Patent Grant
• 918171

• References
• Source

• Patent Number

  918,171

• Date Filed

  Not available

• Date Issued

  Tuesday, April 13, 1909
  115 years ago

• CPC

  • B23Q35/00 - Control systems or devices for copying directly from a pattern or a master model Devices for use in copying manually
  • Y10T409/301512 - including plural cutters

• US Classifications

  • 409 - Gear cutting, milling, or planing