2757580

Information

• Patent Grant
• 2757580

• References
• Source

• Patent Number

  2,757,580

• Date Filed

  Not available

• Date Issued

  Tuesday, August 7, 1956
  68 years ago

• CPC

  • B21C37/153 - Making tubes with inner- and/or outer guides
  • B23D43/005 - for cutting helical grooves
  • Y10T409/502952 - For rifling

• US Classifications

  • 409 - Gear cutting, milling, or planing