2746321

Information

• Patent Grant
• 2746321

• References
• Source

• Patent Number

  2,746,321

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1956
  69 years ago

• CPC

  • B21J7/145 - the hammers being driven by a rotating annular driving member

• US Classifications

  • 072 - Metal deforming
  • 267 - Spring devices