(under subclass 209) Implement wherein the ball seat includes, or is connected to, an element which is deformable by pressure applied thereto and which has the ability to resile from such deformation when such pressure is released so as to permit movement of the ball relative to some part of the seat.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272+, for a similar combination whose tool is a brush, broom, or mop; and see the search notes thereto.
