Stringed Patents (Class 84/173)
- Duplex (Class 84/175)
- Separable (Class 84/176)
- Cases (Class 84/177)
- Frames, string plate and sounding boards (Class 84/184)
- Frames and string plates (Class 84/185)
- Frames (Class 84/186.1)
- String plates and sounding boards (Class 84/187)
- String plates (Class 84/188)
- Resonance devices (Class 84/189)
- Stringing (Class 84/197)
- Strings (Class 84/199)
- Tuning devices (Class 84/200)
- Bridges (Class 84/209)
- Expression devices (Class 84/216)
- Harmonic dampers (Class 84/234)
- Couplers (Class 84/235)
- Hammers actions (Class 84/236)
- Bowed or violin pianos (Class 84/256)
- Plectrum (Class 84/258)
- Bodies (Class 84/291)
- Necks (Class 84/293)
- Resonance devices (Class 84/294)
- Strings and fastenings (Class 84/297R)
- Bridges (Class 84/307)
- Tunings (Class 84/312R)
- Tremolo devices (Class 84/313)
- Finger boards and frets (Class 84/314R)
- Fingering devices (Class 84/315)
- Picking devices (Class 84/320)
- Hammer mechanism (Class 84/323)
- Bowing mechanism (Class 84/325)
- Instrument supports (Class 84/327)
- Arm, hand, or finger rests (Class 84/328)
- Article holders (Class 84/329)