3171988

Information

• Patent Grant
• 3171988

• References
• Source

• Patent Number

  3,171,988

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1965
  61 years ago

• CPC

  • H01H3/24 - using pneumatic or hydraulic actuator
  • Y10T137/86694 - Piston valve
  • Y10T307/983 - Fluid-pressure actuator

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 137 - Fluid handling
  • 246 - Railway switches and signals