379544

Information

• Patent Grant
• 379544

• References
• Source

• Patent Number

  379,544

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1888
  136 years ago

• CPC

  • B21F35/00 - Making springs from wire
  • Y10T29/49607 - Spring-head clip making

• US Classifications

  • 029 - Metal working
  • 267 - Spring devices