389570

Information

• Patent Grant
• 389570

• References
• Source

• Patent Number

  389,570

• Date Filed

  Not available

• Date Issued

  Tuesday, September 18, 1888
  136 years ago

• CPC

  • B21D35/00 - Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
  • Y10T29/49607 - Spring-head clip making

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working