3864828

Information

• Patent Grant
• 3864828

• References
• Source

• Patent Number

  3,864,828

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1975
  50 years ago

• CPC

  • H02G1/1226 - making a helical cut
  • B23D3/06 - in which the direction of feed is controlled by a copying device

• US Classifications

  • 030 - Cutlery