(under subclass 716) Innerspring-type core mattress in which the coiled wire core is made up of individual coiled wire members or small groups of coiled wire members separated by partitions.
(1) Note. Usually individual or small groups of springs are enclosed in a clothlike cover to isolate the individual springs, or group of springs from other springs.
SEE OR SEARCH THIS CLASS, SUBCLASS:
655.8, for body supports comprising compartmentalized spring devices.