450047

Information

• Patent Grant
• 450047

• References
• Source

• Patent Number

  450,047

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1891
  133 years ago

• CPC

  • B21D35/00 - Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
  • Y10T29/203 - by use of reciprocating cutter or die

• US Classifications

  • 029 - Metal working