1394079

Information

• Patent Grant
• 1394079

• References
• Source

• Patent Number

  1,394,079

• Date Filed

  Not available

• Date Issued

  Tuesday, October 18, 1921
  103 years ago

• CPC

  • B23D37/16 - for broaching helical grooves
  • Y10T409/40315 - Rifling

• US Classifications

  • 409 - Gear cutting, milling, or planing