Subjects: STEEL industry; INDUSTRIAL productivity; AUTOMOBILE industry & economicsDETROIT (Mich.); MICHIGAN
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Subjects: PLUMBING industryGILBERT, George G.
Subjects: SOUND motion picturesGOODYEAR Tyre & Rubber Co.SCHMIDT, Otto L.
Subjects: MASS murderers; PHYSICS teachers; BILLIARD parlors