.~.~ By vertical gathering of material between the cups
DEFINITION
Classification: 450/69
By vertical gathering of material between the cups:
(under subclass 68) Subject matter wherein the portion connecting the two cups is provided with means to contract the portion in a direction approximately normal to the line connecting the centers of the cups.
SEE OR SEARCH THIS CLASS, SUBCLASS:
67, for cups which are provided with elastic shirring in their rims to permit variations in the size of the cup.