3708255

Information

• Patent Grant
• 3708255

• References
• Source

• Patent Number

  3,708,255

• Date Filed

  Not available

• Date Issued

  Tuesday, January 2, 1973
  52 years ago

• CPC

  • A21C11/163 - Applying co-extrusion, i.e. extruding two or more plastic substances simultaneously
  • A21C11/166 - for making toroid-shaped products

• US Classifications

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