2137880

Information

• Patent Grant
• 2137880

• References
• Source

• Patent Number

  2,137,880

• Date Filed

  Not available

• Date Issued

  Tuesday, November 22, 1938
  86 years ago

• CPC

  • F22D5/24 - with electric switches
  • Y10T137/729 - Washing machine cycle control
  • Y10T137/7439 - Float arm operated valve
  • Y10T137/7455 - Valve removable from outside container
  • Y10T403/31 - Flexible diaphragm or bellows

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 073 - Measuring and testing
  • 074 - Machine element or mechanism
  • 122 - Liquid heaters and vaporizers
  • 137 - Fluid handling
  • 220 - Receptacles
  • 403 - Joints and connections