| 984 / | HD | MUSICAL INSTRUMENTS |
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| 1 | DD | 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} {2} |
| 7 |  | .~ Details of, accessories for, organs, harmoniums, or the like {G10B 3/00} {11} |
| 8 | DD | .~.~> Blowers {G10B 3/02} |
| 9 | DD | .~.~> Reservoirs {G10B 3/04} |
| 10 | DD | .~.~> Valves; Sleeves {G10B 3/06} |
| 11 | DD | .~.~> Pipes, e.g., open end, reed pipe, etc. {G10B 3/08} |
| 12 | DD | .~.~> Actions, e.g., coupler, etc. {G10B 3/10} |
| 13 | DD | .~.~> Keys or keyboards; Manuals {keyboards for musical instruments in general subclass 60} {G10B 3/12} |
| 14 | DD | .~.~> Pedals or pedal boards {G10B 3/14} |
| 15 | DD | .~.~> Swell chambers; Accentuating means {G10B 3/16} |
| 16 | DD | .~.~> Tremolo-producing devices {G10B 3/18} |
| 17 | DD | .~.~> Transposing devices {G10B 3/20} |
| 18 | DD | .~.~> Details peculiar to electrically-operated organs, e.g., contacts therefor, etc. {G10B 3/22} |