MACHINISTS' TOOLS.
New and Improved Patterns. Send for new illustrated catalogue.
Lathes, Planers, Drills, &c.
NEW HAVEN MANUFACTURING CO., New Haven, Conn.
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SKATES AND NOVELTIES. Send for Catalogue. R. SIMPSON, 132 Nassau St., N. Y.
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Scientific American, Volume XLIII., No. 25, December 18, 1880 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 133 / 165 题