1698738

Information

• Patent Grant
• 1698738

• References
• Source

• Patent Number

  1,698,738

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1929
  97 years ago

• CPC

  • F16L13/124 - for concrete pipes

• US Classifications

  • 277 - Seal for a joint or juncture
  • 138 - Pipes and tubular conduits
  • 285 - Pipe joints or couplings