3253557

Information

• Patent Grant
• 3253557

• References
• Source

• Patent Number

  3,253,557

• Date Filed

  Not available

• Date Issued

  Tuesday, May 31, 1966
  58 years ago

• CPC

  • B30B11/204 - Rings with adjustable extrusion openings

• US Classifications

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