1928749

Information

• Patent Grant
• 1928749

• References
• Source

• Patent Number

  1,928,749

• Date Filed

  Not available

• Date Issued

  Tuesday, October 3, 1933
  92 years ago

• CPC

  • C01B21/44 - Concentration

• US Classifications

  • 203 - Distillation: processes, separatory