Well casing joint
United States Patent 2537284
US Patent References:
/1223591.html
- - 1223591
/1297591.html
- - 1297591
Stovepipe attachment
- - 1661674
System and method of operation for communication by television
- - 2062198
/1223591.html
- - 1223591
/1297591.html
- - 1297591
Stovepipe attachment
- - 1661674
System and method of operation for communication by television
- - 2062198
Inventors:
Schuder, Paul S.
Publication Date:
01/09/1951
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Assignee:
Schuder, Paul S.
Primary Class:
Other Classes:
285/921, 285/399, 285/424, 285/417
International Classes:
E21B17/08; E21B17/02