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Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 244
915. INTERNAL WORM-GEAR WHEEL fordriving a spur-gear pinion. … 916. WORM-GEAR PINION to drive an inter-nal spur-gear wheel.Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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