3177688

Information

• Patent Grant
• 3177688

• References
• Source

• Patent Number

  3,177,688

• Date Filed

  Not available

• Date Issued

  Tuesday, April 13, 1965
  59 years ago

• CPC

  • F41A21/18 - Grooves-Rifling
  • B21C37/153 - Making tubes with inner- and/or outer guides

• US Classifications

  • 072 - Metal deforming
  • 042 - Firearms