Well testing tool - Patent 2280785

Well testing tool

United States Patent 2280785

Inventors:

Alexander, Boynton

Publication Date:

04/28/1942

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Assignee:

Alexander, Boynton

Primary Class:

166/250.080

Other Classes:

166/148, 166/113, 73/152.360, 73/152.280, 166/240, 175/233, 175/325.200, 166/264, 166/147

International Classes:

E21B33/124; E21B49/08; E21B33/12; E21B49/00