1664689

Information

• Patent Grant
• 1664689

• References
• Source

• Patent Number

  1,664,689

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1928
  96 years ago

• CPC

  • C04B33/16 - Lean materials
  • Y10S425/101 - Aggregate and pellet

• US Classifications

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