3833331

Information

• Patent Grant
• 3833331

• References
• Source

• Patent Number

  3,833,331

• Date Filed

  Not available

• Date Issued

  Tuesday, September 3, 1974
  50 years ago

• CPC

  • B28B7/162 - for building blocks or similar block-shaped articles
  • B28B1/0935 - using only elements wholly or partly immersed in the material

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 264 - Plastic and nonmetallic article shaping or treating: processes