.~.~ And movable component or surface for closing throat
DEFINITION
Classification: 24/714
And movable component or surface for closing throat:
(under subclass 713.9) String guiding means having either (1) a distinct displaceable part connected to or (2) a displaceable surface segment integral with or rigidly affixed to the shank or appendage of the guiding means for blocking the gap through which the string enter or leaves.