3284880

Information

• Patent Grant
• 3284880

• References
• Source

• Patent Number

  3,284,880

• Date Filed

  Not available

• Date Issued

  Tuesday, November 15, 1966
  58 years ago

• CPC

  • B23P15/065 - from metal strip
  • Y10T29/49282 - including grinding or honing
  • Y10T29/49284 - including machining or angular cutting
  • Y10T29/49609 - Spring making

• US Classifications

  • 029 - Metal working
  • 267 - Spring devices