1290820

Information

• Patent Grant
• 1290820

• References
• Source

• Patent Number

  1,290,820

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1919
  105 years ago

• CPC

  • B01D29/0054 - arranged concentrically or coaxially

• US Classifications

  • 210 - Liquid purification or separation