3439622

Information

• Patent Grant
• 3439622

• References
• Source

• Patent Number

  3,439,622

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1969
  56 years ago

• CPC

  • H02P7/20 - using multi-position switch
  • Y10S388/929 - Fluid/granular material flow rate, pressure, or level

• US Classifications

  • 417 - Pumps
  • 388 - Electricity: motor control systems