1805720

Information

• Patent Grant
• 1805720

• References
• Source

• Patent Number

  1,805,720

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1931
  93 years ago

• CPC

  • C10B55/04 - with moving solid materials

• US Classifications

  • 202 - Distillation: apparatus
  • 196 - Mineral oils: apparatus