3314453

Information

• Patent Grant
• 3314453

• References
• Source

• Patent Number

  3,314,453

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1967
  57 years ago

• CPC

  • B21F3/06 - internally on a hollow form
  • B21F11/005 - springs
  • B21F35/00 - Making springs from wire
  • B21F35/02 - Bending or deforming ends of coil springs to special shape

• US Classifications

  • 140 - Wireworking