1837490

Information

• Patent Grant
• 1837490

• References
• Source

• Patent Number

  1,837,490

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1931
  93 years ago

• CPC

  • F16L51/022 - with a single corrugation

• US Classifications

  • 285 - Pipe joints or couplings