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You searched for: All Creators Gray, A. R. Remove constraint All Creators: Gray, A. R. All Subjects Boring. Remove constraint All Subjects: Boring.
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1. Deep well drilling.

Creator Personal:
Gray, A. R.
Title:
Deep well drilling.
Call Number:
P752
Date:
1917
Description:
Journal article tearout from: Natural Gas Association of America. Meeting. Proceedings, 12th (1917).
Subject Topical:
Oil well drilling., Boring., Gas well drilling., Wells.
All:
Oil well drilling., Boring., Gas well drilling., Wells.