2170922

Information

• Patent Grant
• 2170922

• References
• Source

• Patent Number

  2,170,922

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1939
  85 years ago

• CPC

  • B67D1/1472 - the valve shutter being integral with a compensator

• US Classifications

  • 251 - Valves and valve actuation
  • 138 - Pipes and tubular conduits