Description: 984 musical instruments / 984 musical instruments/(1) organs; harmoniums {mouth organs or accordions subclasses 100+; aspects of automatic actuation subclasses 200+; combinations of microphones, pick-ups or amplifiers with musical instruments, electric organs subclasses 300+} {g10b} (7) details of, accessories for, organs, harmoniums, or the like {g10b 3/00} (18) details peculiar to electrically-operated organs, e.g., contacts therefor, etc. {g10b 3/22}
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