1770180

Information

• Patent Grant
• 1770180

• References
• Source

• Patent Number

  1,770,180

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1930
  94 years ago

• CPC

  • F16L13/124 - for concrete pipes

• US Classifications

  • 285 - Pipe joints or couplings
  • 228 - Metal fusion bonding