Semi-annual report on the project to design and experimentally test an improved geothermal drill bit

An edition of Semi-annual report on the project to design and experimentally test an improved geothermal drill bit (1979)

Semi-annual report on the project to design and experimentally test an improved geothermal drill bit

By L. M. Barker

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Publish Date

1979

Publisher

Dept. of Energy, [Division of] Geothermal Energy,for sale by the National Technical Information Service

Language

eng

Pages

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