3685340

Information

• Patent Grant
• 3685340

• References
• Source

• Patent Number

  3,685,340

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1972
  52 years ago

• CPC

  • B21D53/80 - dustproof covers safety covers
  • B21D19/12 - Edge-curling
  • B21D43/05 - specially adapted for multi-stage presses

• US Classifications

  • 072 - Metal deforming