1974181

Information

• Patent Grant
• 1974181

• References
• Source

• Patent Number

  1,974,181

• Date Filed

  Not available

• Date Issued

  Tuesday, September 18, 1934
  90 years ago

• CPC

  • F01B25/00 - Regulating, controlling, or safety means
  • F01B2250/001 - Valves for steam inlet or outlet

• US Classifications

  • 091 - Motors: expansible chamber type