3659539

Information

• Patent Grant
• 3659539

• References
• Source

• Patent Number

  3,659,539

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1972
  52 years ago

• CPC

  • B21D19/08 - by single or successive action of pressing tools
  • B21D11/203 - Round bending
  • B21D53/80 - dustproof covers safety covers

• US Classifications

  • 072 - Metal deforming