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Scientific American, Vol. 33, No. 7 (August 1875) (1875)

leaf 7

An illustration from Scientific American, Vol. 33, No. 7 (August 1875), 1875, leaf 7
ric acid and caustic IMPROVED i PRESSURE BLOCKS FOR PLANING MACHINES, Carpenters, cabinet makers, and others who find it fre- or carbonate of soda from Chili saltpeter at one operation, which was patented in Prussia in 1867, in [the hope that We illustrate herewith a novel improvement in planing… … Springfield, 111., to whom inquiries terwards in large iron pans under a for further particulars may be ad- stone vaulted cover, unt'l no more dressed.1 PATTERSON'S PRESSURE BLOCKS FOR PLANING MACHINES. gas was evolved, and the mass be © 1875 SCIENTIFIC AMERICAN, INC.

Iron · Improved · Inches · Consists · Patents · Scientific American · Feet long · Compressed air · Wrought iron · Scientific men · Sewing machine · Salicylic acid · Cast Iron · Horse power · Carbolic acid

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