2137540

Information

• Patent Grant
• 2137540

• References
• Source

• Patent Number

  2,137,540

• Date Filed

  Not available

• Date Issued

  Tuesday, November 22, 1938
  86 years ago

• CPC

  • D06F21/12 - the receptacle having a wobbling motion

• US Classifications

  • 068 - Textiles: fluid treating apparatus
  • 210 - Liquid purification or separation