3516690

Information

• Patent Grant
• 3516690

• References
• Source

• Patent Number

  3,516,690

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1970
  54 years ago

• CPC

  • F16L13/0236 - having an outer ring
  • F16L13/0263 - having an internal coating

• US Classifications

  • 285 - Pipe joints or couplings