2155170

Information

• Patent Grant
• 2155170

• References
• Source

• Patent Number

  2,155,170

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1939
  85 years ago

• CPC

  • G05D16/163 - using one or several membranes
  • Y10T137/7767 - Loose fitting piston

• US Classifications

  • 137 - Fluid handling