Discussion

Rocky Mountain Coal Mining Institute
Organization:
Rocky Mountain Coal Mining Institute
Pages:
5
File Size:
525 KB
Publication Date:
Jan 1, 1925

Abstract

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MR. GERALD ALLEY (C 11 i e f Draftsman, C. F. & I. Co.) : This invention is primarily intended to correct anything that goes wrong with the fan and any conditions in your air current underground which do not produce a change in your fan water gauge
Citation

APA:  (1925)  Discussion

MLA: Discussion . Rocky Mountain Coal Mining Institute, 1925.

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