In a saxophone, a key located adjacent the thumb rest and linked to the B flat key for playing the B &musicf& note in the lower register with the thumb of the left hand.
申请公布号
US4148242(A)
申请公布日期
1979.04.10
申请号
US19770854772
申请日期
1977.11.25
申请人
BRASS AND WOODWIND SHOP, INC.
发明人
WOEHR, THEODORE P.;KRESIC, RICHARD K.;SHEPPARD, JAMES S.
