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Scientific American, Vol. 80, No. 13 (1899) (1899)

leaf 4

An illustration from Scientific American, Vol. 80, No. 13 (1899), 1899, leaf 4
sphorus, which has all The filtering machine is inclosed in a casing, in the the advantages of white phosphorus without the draw- sides of which the rollers are journaled. These rollers backs of the latter. It is obtained through the com- support the endless belt of filtering material. The bination… … a The composition varies slightly according as the THE MULTIPHONE. A MACHINE FOR FILTERING LIQUIDS. paste is designed for sulphur, paraffined, or wax We publish herewith the latest development in talk- ruatches. Not only is this product free from the incon- ing machines, the multiphone, conceived…

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