1691590

Information

• Patent Grant
• 1691590

• References
• Source

• Patent Number

  1,691,590

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1928
  96 years ago

• CPC

  • F16L51/005 - for concrete pipe-lines

• US Classifications

  • 285 - Pipe joints or couplings