Invention Grant
US09583079B2 Silencer for wind instrument 有权
消声器用于管乐器

Silencer for wind instrument
Abstract:
A silencer for a wind instrument includes a hollow pipe whose one end is closed and serves as a closed end. The pipe includes an outer wall having at least one of at least one recessed portion and at least one protruding portion on a portion of the outer wall near the closed end.
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