3438500

Information

• Patent Grant
• 3438500

• References
• Source

• Patent Number

  3,438,500

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1969
  55 years ago

• CPC

  • B04B3/025 - with a reversible filtering device

• US Classifications

  • 210 - Liquid purification or separation