2505249

Information

• Patent Grant
• 2505249

• References
• Source

• Patent Number

  2,505,249

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1950
  74 years ago

• CPC

  • C04B20/061 - in rotary kilns

• US Classifications

  • 252 - Compositions
  • 432 - Heating