Search Results for: Magnetic resonance imaging apparatus
continuous sounds produced from pianoforte strings or springs, by means of currents of air which pass through apertures slightly wider than the body the air vibrates. aug. , w, southwell. spring applied to hammer butt, to obtain repetition. feb. , johann stumpff. improvements in mechanism and tuning apparatus
waddington. the ribs or bars ii front, instead of at the back, of the sounding board. may , . g. thomas. bracings dovetailed into the body of the wrest plank. may , j. harrison. metallic wrest plank and improved lever. aug. , w. s. smith. rounded bridges with plates of metal. oct. , . f. delsarte. apparatus...
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