3820439

Information

• Patent Grant
• 3820439

• References
• Source

• Patent Number

  3,820,439

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • B23Q35/18 - involving fluid means

• US Classifications

  • 091 - Motors: expansible chamber type
  • 060 - Power plants
  • 251 - Valves and valve actuation