[Trade Journal]
Publication: Pottery & Glassware Reporter
Pittsburgh, PA, United States
vol. 10, no. 12, p. 13, col. 1-2
INVENTIONS
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290,741 [sic] 290,771, GLASS BATCH MIXER. — To Ralph G. Hemingray, Covington, Ky., for a machine for mixinig batch for making glass.
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