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Scientific American, Vol. 18, No. 4 (1868) (1868)

leaf 15

An illustration from Scientific American, Vol. 18, No. 4 (1868), 1868, leaf 15
gaged in the business of obtaining patents for over twenty Lubricating Packing for Steam Kngines, Pumps, etc. a years—nearly a quarter Y. a century. Over Fifty thou- parties are cautioned against the use or sale of any ack- sands inventors have had benefit trom ourcounsels. More sub- ing made from…

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