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Scientific American, Vol. 81, No. 16 (1899) (1899)

leaf 13

An illustration from Scientific American, Vol. 81, No. 16 (1899), 1899, leaf 13
Scientific American. OcToBER 14, 1899. 254 … Dept. A. 120-122 Liberty St., New York. Cridge. . 634.826 Phonogra hs, multiple. mandrel attachment for. CIVIL SERVICE EXAMINATIONS, A. TOMO los ch home cet a 634,025 Photographic plates, simulta heously, developing Bachelor’s Buttons made tor STEAM ENGINEERS and ELECTRICIANS witn Improved Wash-…

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