2257438

Information

• Patent Grant
• 2257438

• References
• Source

• Patent Number

  2,257,438

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1941
  83 years ago

• CPC

  • B23D5/02 - involving rotary and straight-line movements only
  • Y10T409/502952 - For rifling
  • Y10T409/509676 - with means to permit repositioning of cutting for idle return stroke

• US Classifications

  • 409 - Gear cutting, milling, or planing