3394447

Information

• Patent Grant
• 3394447

• References
• Source

• Patent Number

  3,394,447

• Date Filed

  Not available

• Date Issued

  Tuesday, July 30, 1968
  56 years ago

• CPC

  • B23P15/26 - heat exchangers or the like
  • Y10T29/13 - Button-fastener making

• US Classifications

  • 419 - Powder metallurgy processes
  • 029 - Metal working