3071840

Information

• Patent Grant
• 3071840

• References
• Source

• Patent Number

  3,071,840

• Date Filed

  Not available

• Date Issued

  Tuesday, January 8, 1963
  62 years ago

• CPC

  • B21C37/153 - Making tubes with inner- and/or outer guides
  • Y10T409/50082 - Process
  • Y10T409/502952 - For rifling

• US Classifications

  • 042 - Firearms
  • 409 - Gear cutting, milling, or planing