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Scientific American, Vol. 25, No. 4 (July 1871) (1871)

leaf 7

An illustration from Scientific American, Vol. 25, No. 4 (July 1871), 1871, leaf 7
ns carried out in exact accordance with their draw- proved tamping injector for use in blasting. It consists in a ings to the minutest details. The work, when done, is French security against leakage of roofs is obtained; while, at the tamping injector, having a cylinder or barrel with a handle… … as effective. By having his wits about him and a plenti- The tiles thus made will, it is thought, find PAPPELENDAM'S METALLIC TILES FOR WALLS. ROOFING, Etc. ful supply of eggs, Mr. Joseph Hale succeeded a wide application in this country and abroad. tained is perhaps the greatest present drawback,…

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