US PATENT SUBCLASS 984 / 362-- .~.~ Using mechanical resonant generators, e.g., strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument {G10H 3/12}

US PATENT SUBCLASS 984 / 362
.~.~ Using mechanical resonant generators, e.g., strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument {G10H 3/12}

984 /	HD	MUSICAL INSTRUMENTS

300	DD	ELECTRONIC MUSICAL INSTRUMENTS {structural combinations of microphones, pick-ups, or amplifiers with musical instruments subclasses 1+, 50+, and 100+; Instruments in which each note is generated by a different individually-actuated mechanical resonating structure and is amplified electrically subclasses 50+; Instruments in which each note is produced by a different electrically-vibrated sounding element subclasses 100+; Electronic circuits in general H03. {G10H} {4}
355	DD	.~ Instruments in which the tones are generated by electromechanical means {G10H 3/00} {3}
362		.~.~ Using mechanical resonant generators, e.g., strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument {G10H 3/12} {3}
363	DD	.~.~.~> Using mechanically actuated vibrators with pick-up means {G10H 3/14} {5}
373	DD	.~.~.~> Using electromechanically actuated vibrators with pick-up means {subclass 374 takes precedence} {G10H 3/22}
374	DD	.~.~.~> Incorporating feed-back means, e.g., acoustic, etc. {G10H 3/24} {1}