3477491

Information

• Patent Grant
• 3477491

• References
• Source

• Patent Number

  3,477,491

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1969
  55 years ago

• CPC

  • B29C47/766 - in screw extruders
  • B01D1/226 - in the form of a screw or with helical blade members
  • B29C47/0009 - characterised by the shape of the articles
  • Y10S159/10 - Organic

• US Classifications

  • 159 - Concentrating evaporators
  • 425 - Plastic article or earthenware shaping or treating: apparatus