Search Results - May, Ralph W.

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    Furrow drill for sowing winter wheat in central Montana / by May, Ralph W.

    Published 1925
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  2. 2
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    Investigation of a 1/7-scale powered model of a twin-boom airplane and a comparison of its stability, control, and performance with those of a similar all-wing airplane / by Brewer, Gerald W.

    Published 1948
    Other Authors: “…May, Ralph W.…”
    Government Document Book

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