3857269

Information

• Patent Grant
• 3857269

• References
• Source

• Patent Number

  3,857,269

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1974
  50 years ago

• CPC

  • B21C1/04 - with two or more dies operating in series
  • B21C1/24 - by means of mandrels
  • B21C47/20 - the unreeled material moving transversely to the tangent line of the drum
  • Y10T29/49828 - Progressively advancing of work assembly station or assembled portion of work

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working