Perforator for wells - Alexander, Boynton

Title:

Perforator for wells

United States Patent 2315496

Inventors:

Alexander, Boynton

Publication Date:

04/06/1943

Export Citation:

Assignee:

Alexander, Boynton

Primary Class:

175/67

Other Classes:

37/344, 166/55, 166/222, 166/298, 175/237, 175/424, 411/403, 451/40, 451/75

International Classes:

E21B43/114; E21B43/11

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