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Scientific American, Vol. 66, No. 25 (June 1892) (1892)

leaf 15

An illustration from Scientific American, Vol. 66, No. 25 (June 1892), 1892, leaf 15
.OETROIT. rotated, is much less than in regular screws, and the tendency to split the wood, mar the slot, and break the head is thereby avoided. NEW MAIL RUSSELL & ERWIN MFG. COMPANY, New Britain* Conn., U. S. A. Regular NEW YORK, PHILADELPHIA, BALTIMORE, LONDON. Junior Cushion Tires, Tangent… … representing Engineering Works, Steam Machinery, New Inventions, Novelties in Mechanics, Manufactures, "THE COMPRESS IMPROVEMENTS PATENTED 1880 IN THE U. S.,CANADA AND EUROPE. Chemistry, Electricity, Telegraphy, Photography, Archi- h l POLISHING WHEELS FIRE-PROOF. Easily applied by anyone. Send f…

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