1957972

Information

• Patent Grant
• 1957972

• References
• Source

• Patent Number

  1,957,972

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1934
  90 years ago

• CPC

  • G05D16/0602 - two controllers being mounted in series
  • Y10T137/7795 - Multi-stage
  • Y10T137/7829 - Yoke has valve closing bias
  • Y10T137/8175 - Plural
  • Y10T137/8326 - Fluid pressure responsive indicator, recorder or alarm

• US Classifications

  • 137 - Fluid handling