2388537

Information

• Patent Grant
• 2388537

• References
• Source

• Patent Number

  2,388,537

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1945
  80 years ago

• CPC

  • B21F3/08 - to flat spiral
  • B21F3/00 - Coiling wire into particular forms
  • Y10T29/49609 - Spring making

• US Classifications

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