The mechanical index, 1904. A complete index to the names and addresses of all manufacturers in the United States of mechanical appliances, machinery and tools operated by steam, electricity, water, hand or foot power (1904)
New York, The Industrial Press · leaf 1054
■)1ooig Xaiind iisj^uojaji^jo «.109-J!a,, THE MECHANICAL INDEX. 121 Hindley Worm Gearing … has twenty-five per cent greater efficiency than ordinary gearing and lasts longer FREE CATALOGUEON APPLICATION Morse Williams CQ. Co. PHILADELPHIA, PA. B. F. PBRRINS (Q. SON, HOLYOKE, MASS. Manufacturers of Perkins Patented Ventilating andExhaust Fans, for every possible requiremer^, in-cluding…
Machinery
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