1471184

Information

• Patent Grant
• 1471184

• References
• Source

• Patent Number

  1,471,184

• Date Filed

  Not available

• Date Issued

  Tuesday, October 16, 1923
  101 years ago

• CPC

  • F16L55/1658 - the old pipe being ruptured prior to insertion of a new pipe
  • F28F11/04 - using pairs of obturating elements

• US Classifications

  • 138 - Pipes and tubular conduits