Name
- H Brinkmann & Co, manufacturers1
- Halsmayer Piano Company1
- Hans, Pierre, engineer1
- Hermann, Felix, piano maker of Lübeck1
- Hinchliffe, Irvin, harpsichordist1
- Hurst, J W, of the Colonia Player Piano Co1
- International Inventions Exhibition1
- John Malcolm & Co, American organ and player-piano manufacturers1
- Lexow, A D, manufacturer of pianos1
- Marsden, Newton, piano teacher and technician1
- Mayerl, Billy, pianist and composer alias William Joseph, 1902-19591
- McHardy, Rudolph H, piano dealer1
- Miles, Edwin, piano dealer1
- Morton, F E, acoustic engineer American Steel & Wire Company1
- Moutrie, Sydenham, piano dealer Shanghai1
- Muller, M R, of the American Player Action Co1
- Musicus Piano Player Co1
- Phillips, J W, engineer1
- Pianoforte Industries Trade Union1
- R Bernard & Co, timber importers and merchants1