|
US3021743A
|
|
Tuning mechanism for drums
|
|
US2729133A
|
|
Drum tuning mechanism
|
|
US2688269A
|
|
Reciprocatory plunger type ratchet wrench
|
|
US2568504A
|
|
Tone indicating mechanism for kettledrums
|
|
US2540051A
|
|
Drum beating mechanism
|
|
US2517125A
|
|
Adjustable supporting leg structure for drums and other articles
|
|
US2502733A
|
|
Kettle drum and timpani therefor
|
|
US2517124A
|
|
Snare structure for drums
|
|
US2261120A
|
|
Snare drum
|
|
US2150981A
|
|
Timpano adjuster
|
|
US1832227A
|
|
Snare drum
|
|
US1561790A
|
|
Adjustable support for tympani and the like
|
|
US1054009A
|
|
Musical instrument.
|
|
US1092276A
|
|
Drum and cymbal beater.
|
|
US1042806A
|
|
Snare strainer and muffler.
|
|
US922706A
|
|
Drum and cymbal playing apparatus.
|
