Reprint of "A new drill for excavating mineral particles" by J S Mann, Chemical Engineering and Mining Review
العنوانReprint of "A new drill for excavating mineral particles" by J S Mann, Chemical Engineering and Mining Review
مرجع040000172
التاريخNovember 1935
وثيقة خارجية
كلمات مفتاحية في أسماء الأشخاص Frank Leslie Stillwell, J. S. Mann
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