638563

Information

• Patent Grant
• 638563

• References
• Source

• Patent Number

  638,563

• Date Filed

  Not available

• Date Issued

  Tuesday, December 5, 1899
  125 years ago

• CPC

  • B23F5/207 - the tools being interlocked
  • Y10T409/106201 - Plural rotary cutters

• US Classifications

  • 409 - Gear cutting, milling, or planing