3724257

Information

• Patent Grant
• 3724257

• References
• Source

• Patent Number

  3,724,257

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1973
  51 years ago

• CPC

  • B21D43/287 - Devices for handling sheet or strip material
  • B21D53/10 - parts of bearings sleeves valve seats or the like
  • Y10T29/49675 - having inner lining layer

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working