3608349

Information

• Patent Grant
• 3608349

• References
• Source

• Patent Number

  3,608,349

• Date Filed

  Not available

• Date Issued

  Tuesday, September 28, 1971
  53 years ago

• CPC

  • G04D3/0007 - for springs
  • B21F3/00 - Coiling wire into particular forms
  • B21F3/08 - to flat spiral
  • G04D3/0041 - for coil-springs
  • Y10T29/49579 - Watch or clock making
  • Y10T29/49609 - Spring making

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working
  • 968 - Horology