488553

Information

• Patent Grant
• 488553

• References
• Source

• Patent Number

  488,553

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1892
  132 years ago

• CPC

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

• US Classifications

  • 029 - Metal working
  • 072 - Metal deforming