(under subclass 25.1) Umbrella wherein significance is attributed to structure of the stick or a handle which permits the stick to be reduced in length.
(1) Note. Many umbrellas in subclasses 25.1 through 25.34 have a collapsible stick or handle, many of which have not been cross-referenced to this subclass.
(2) Note. This subclass takes subcombinations of an umbrella handle or stick.
