1919240

Information

• Patent Grant
• 1919240

• References
• Source

• Patent Number

  1,919,240

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1933
  91 years ago

• CPC

  • C10C1/16 - Winning of pitch

• US Classifications

  • 208 - Mineral oils: processes and products
  • 202 - Distillation: apparatus
  • 203 - Distillation: processes, separatory