2764780

Information

• Patent Grant
• 2764780

• References
• Source

• Patent Number

  2,764,780

• Date Filed

  Not available

• Date Issued

  Tuesday, October 2, 1956
  68 years ago

• CPC

  • B30B11/245 - using two or more screws working in different chambers

• US Classifications

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