Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 385
1554. BELL CLAPPER MOVEMENT.—The outside stroke is the best to prevent crack-ing in large bells. … 1555. PIANO KEY AND ACTION.A study of complex movement.
Mechanical movements
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