2658267

Information

• Patent Grant
• 2658267

• References
• Source

• Patent Number

  2,658,267

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1953
  71 years ago

• CPC

  • G04D1/041 - for springs of driving mechanisms
  • B21D11/06 - Bending into helical or spiral form Forming a succession of return bends
  • B21F3/00 - Coiling wire into particular forms
  • Y10T29/5198 - Continuous strip
  • Y10T29/53626 - Flat spiral spring [e.g., watch or clock type]

• US Classifications

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