2973211

Information

• Patent Grant
• 2973211

• References
• Source

• Patent Number

  2,973,211

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1961
  63 years ago

• CPC

  • F16L37/0848 - rocking freely
  • F16L55/1007 - Couplings closed automatically when broken

• US Classifications

  • 285 - Pipe joints or couplings
  • 251 - Valves and valve actuation