(under subclass 11) Devices having a back hollowed to form a receptacle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
112+, for combs with an orifice for applying fluent material from a supply within a hollow back.
117, for combs with a hollow back for holding a removable heat accumulator.
123, for combs combined with a hollow winding mandrel into which the comb is retractable.
125, for combs having a cavity so disposed relative to the teeth that matter foreign to the hair will be moved into or out of the cavity as the comb is passed through the hair.
