| 984 / | HD | MUSICAL INSTRUMENTS |
| 100 | DD | MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR {aspects of automatic actuation subclasses 200+; Combinations of microphones, pick-ups or amplifiers with musical instruments subclasses 300+; Sound-producing devices not regarded as musical instruments or parts thereof G10K} {G10D} {8} |
| 101 | DD | .~ General design of stringed musical instruments {pianos or similar instruments with keyboard subclasses 50+} {G10D 1/00} {7} |
| 106 | DD | .~.~ Of guitars {G10D 1/08} {1} |
| 107 | | .~.~.~ Mechanical design of electric-guitars {electrical or electromechanical features subclasses 368+} {G10D 1/08B} |