3399702

Information

• Patent Grant
• 3399702

• References
• Source

• Patent Number

  3,399,702

• Date Filed

  Not available

• Date Issued

  Tuesday, September 3, 1968
  56 years ago

• CPC

  • C23G3/022 - the objects following a helicoidal path
  • B21C47/265 - "helicofil" systems

• US Classifications

  • 140 - Wireworking
  • 072 - Metal deforming