3813751

Information

• Patent Grant
• 3813751

• References
• Source

• Patent Number

  3,813,751

• Date Filed

  Not available

• Date Issued

  Tuesday, June 4, 1974
  50 years ago

• CPC

  • B21C37/24 - annularly-ribbed tubes
  • B21D39/08 - Tube expanders
  • Y10T29/53122 - including deforming means
  • Y10T29/5383 - having fluid operator

• US Classifications

  • 029 - Metal working