1540509

Information

• Patent Grant
• 1540509

• References
• Source

• Patent Number

  1,540,509

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1925
  99 years ago

• CPC

  • C04B38/0635 - Compounding ingredients

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 501 - Compositions: ceramic