3905403

Information

• Patent Grant
• 3905403

• References
• Source

• Patent Number

  3,905,403

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1975
  49 years ago

• CPC

  • B21F3/12 - of interconnected helical springs
  • B21F35/003 - Multi-filament springs
  • B21F35/02 - Bending or deforming ends of coil springs to special shape
  • F16F3/04 - composed only of wound springs

• US Classifications

  • 140 - Wireworking
  • 072 - Metal deforming
  • 267 - Spring devices