3685330

Information

• Patent Grant
• 3685330

• References
• Source

• Patent Number

  3,685,330

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1972
  52 years ago

• CPC

  • B21C47/10 - by means of a moving guide
  • B21D11/06 - Bending into helical or spiral form Forming a succession of return bends

• US Classifications

  • 072 - Metal deforming