3238072

Information

• Patent Grant
• 3238072

• References
• Source

• Patent Number

  3,238,072

• Date Filed

  Not available

• Date Issued

  Tuesday, March 1, 1966
  58 years ago

• CPC

  • C21D9/02 - for springs
  • B21D53/886 - leaf springs
  • B21H7/007 - Taper rolling
  • B23P15/00 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
  • C21D7/06 - by shot-peening or the like
  • B21B2045/006 - in vacuum or in inert atmosphere
  • B60G2206/428 - Leaf springs
  • B60G2206/8109 - by rolling
  • Y10T29/49611 - for vehicle or clutch

• US Classifications

  • 148 - Metal treatment
  • 029 - Metal working
  • 072 - Metal deforming
  • 267 - Spring devices