PATENT COLD ROLLED SHAFTING
Price list mailed on application to JONES & LAUGHLINS,
Try Street, 2d and 3rd Avenues, Pittsburgh, Pa.
190 S. Canal Street, Chicago, Ill., and Milwaukie, Wis.
--> Stocks of this shafting in store and for sale by
FULLER, DANA, & FITZ, Boston, Mass.
GEO. PLACE & CO. 121 Chambers St., N. Y.
Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 123 / 213 题