2142970

Information

• Patent Grant
• 2142970

• References
• Source

• Patent Number

  2,142,970

• Date Filed

  Not available

• Date Issued

  Tuesday, January 3, 1939
  86 years ago

• CPC

  • F04B7/0011 - and having an oscillating movement
  • F04B7/0046 - for rotating distribution members

• US Classifications

  • 251 - Valves and valve actuation
  • 417 - Pumps