Scientific Americar. JULY 20, 1889.] 35 … papers and the public should avoid giving currency THOMAS’ MAGNETIC ORE SEPARATOR. finishing, and the machine is so geared that it can cut to this unfounded and dangerous phrase. There are iron wheels up to three inch pitch withtwo such cutters probably no more deaths from heart failure in these…
Internet Archive · Public domain (published before 1931). Free to use for anything.
