3802824

Information

• Patent Grant
• 3802824

• References
• Source

• Patent Number

  3,802,824

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1974
  50 years ago

• CPC

  • A21C11/002 - the shape being toroid-like

• US Classifications

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