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Development of turbodrill tachometer. Final report
Author(s) -
W.J. McDonald,
Don W. Dareing,
W.C. Maurer
Publication year - 1981
Language(s) - Uncategorized
Resource type - Reports
DOI - 10.2172/5630695
Subject(s) - tachometer , borehole , drill pipe , drilling , drill , engineering , drilling fluid , marine engineering , acoustics , automotive engineering , petroleum engineering , mechanical engineering , electrical engineering , geotechnical engineering , dc motor , physics

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