2975677

Information

• Patent Grant
• 2975677

• References
• Source

• Patent Number

  2,975,677

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1961
  63 years ago

• CPC

  • F41A21/04 - Barrel liners
  • B21C37/153 - Making tubes with inner- and/or outer guides

• US Classifications

  • 089 - Ordnance
  • 042 - Firearms
  • 073 - Measuring and testing