2230818

Information

• Patent Grant
• 2230818

• References
• Source

• Patent Number

  2,230,818

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1941
  84 years ago

• CPC

  • B21F3/08 - to flat spiral
  • B21F3/00 - Coiling wire into particular forms
  • Y10T29/5121 - Wire working

• US Classifications

  • 140 - Wireworking
  • 029 - Metal working