Connection between well-pipe sections of different materials

Title:

Connection between well-pipe sections of different materials

United States Patent 1613461

Inventors:

Johnson, Edwin A.

Publication Date:

01/04/1927

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Assignee:

Johnson, Edwin A.

Primary Class:

285/148.120

Other Classes:

204/196.150, 138/155, 166/227, 285/390, 285/288.100, 166/380, 138/DIG.006, 285/422, 166/242.600

International Classes:

F16L13/007; F16L15/00