3454987

Information

• Patent Grant
• 3454987

• References
• Source

• Patent Number

  3,454,987

• Date Filed

  Not available

• Date Issued

  Tuesday, July 15, 1969
  55 years ago

• CPC

  • B29C57/125 - using tools with helical grooves
  • B65G59/108 - the axis of rotation being substantially parallel to the axis of the stack

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus