3382556

Information

• Patent Grant
• 3382556

• References
• Source

• Patent Number

  3,382,556

• Date Filed

  Not available

• Date Issued

  Tuesday, May 14, 1968
  56 years ago

• CPC

  • F41A21/22 - Barrels which have undergone surface treatment
  • B23H9/00 - Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
  • C21D9/10 - shotgun barrels
  • C23C8/00 - Solid state diffusion of only non-metal elements into metallic material surfaces Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating
  • F41A21/12 - Cartridge chambers Chamber liners

• US Classifications

  • 042 - Firearms