3329177

Information

• Patent Grant
• 3329177

• References
• Source

• Patent Number

  3,329,177

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1967
  57 years ago

• CPC

  • B21D11/06 - Bending into helical or spiral form Forming a succession of return bends
  • B21D53/00 - Making other particular articles
  • B21F1/00 - Bending wire other than coiling Straightening wire
  • B21F1/004 - by means of press-type tooling
  • B21F3/12 - of interconnected helical springs
  • Y10S425/007 - Coil
  • Y10T29/49609 - Spring making

• US Classifications

  • 140 - Wireworking
  • 029 - Metal working
  • 072 - Metal deforming
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 425 - Plastic article or earthenware shaping or treating: apparatus