442539

Information

• Patent Grant
• 442539

• References
• Source

• Patent Number

  442,539

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1890
  133 years ago

• CPC

  • C02F1/42 - by ion-exchange
  • B01D24/266 - the container having distribution or collection headers or pervious conduits

• US Classifications

  • 210 - Liquid purification or separation