Title:
Apparatus for logging wells
United States Patent 2524031
Inventors:
Arps, Jan J.
Application Number:
US61962945A
Publication Date:
10/03/1950
Filing Date:
10/01/1945
Assignee:
Arps, Jan J.
Primary Class:
Other Classes:
33/312, 73/152.03, 294/86.1, 324/323, 346/33R, 346/33WL, 367/25
International Classes:
E21B47/18; G01V3/20
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