3187416

Information

• Patent Grant
• 3187416

• References
• Source

• Patent Number

  3,187,416

• Date Filed

  Not available

• Date Issued

  Tuesday, June 8, 1965
  59 years ago

• CPC

  • G04D3/0041 - for coil-springs
  • B21F3/00 - Coiling wire into particular forms
  • B21F3/08 - to flat spiral
  • B21F35/04 - Making flat springs
  • G04B1/145 - Composition and manufacture of the springs
  • G04B17/066 - Manufacture of the spiral spring
  • Y10T29/49579 - Watch or clock making
  • Y10T29/49609 - Spring making
  • Y10T29/4981 - Utilizing transitory attached element or associated separate material

• US Classifications

  • 029 - Metal working
  • 148 - Metal treatment
  • 968 - Horology