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Scientific American, Vol. 66, No. 23 (June 1892) (1892)

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An illustration from Scientific American, Vol. 66, No. 23 (June 1892), 1892, leaf 0
a lever sliding when disturbed. Subterranean springs also A writer in the Boston Evening Transcript declares worked in connection with the rotating gear; during made the work difficult, and in places new beds had to the time the moulding table is making another partial that the plantations made by… … IMPROVED PLASTIC BBICKMAKING MACHINE, © 1892 SCIENTIFIC AMERICAN, INC.

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