CASSIER'S MAGAZINE. 5i8 … HORIZONTAL BORING AND DRILLING MACHINE BUILT BY MESSRS. WARNER & SWASF.Y, CLEVELAND, OHIO. vention and growth of air compressors boring bar, generally of cast iron, upon which slid a piston-like boring head and brakes, ice machines, gas engines, pumps, as well as a general advance to- which carried…
Engineering
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