Search Results - Hjelmstad, Kenneth E.

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  1. 1
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    Effect of ultralow frequency signaling on blasting array current / by Hjelmstad, Kenneth E.

    Published 1993
    Government Document Book

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  2. 2
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    Ultra low frequency electromagnetic fire alarm system for underground mines / by Hjelmstad, Kenneth E.

    Published 1991
    Government Document Book

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  3. 3
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    Analysis of the oxidation of chalcopyrite, chalcocite, galena, pyrrhotite, marcasite, and arsenopyrite / by Reimers, G. W. (George W.)

    Published 1987
    Other Authors: “…Hjelmstad, Kenneth E.…”
    Government Document Book

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  4. 4
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    A standard rock suite for rapid excavation research / by Krech, Warren W.

    Published 1974
    Other Authors: “…Hjelmstad, Kenneth E.…”
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    Government Document Book

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  5. 5
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    An ultrasonic method for determining the attenuation symmetry of materials / by Bur, Thomas Robert, 1926-

    Published 1969
    Other Authors: “…Hjelmstad, Kenneth E.…”
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    Government Document Book

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  6. 6
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    An ultrasonic method for determining the elastic symmetry of materials / by Bur, Thomas Robert, 1926-

    Published 1969
    Other Authors: “…Hjelmstad, Kenneth E.…”
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    Government Document Book

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