| http://www.w3.org/ns/prov#value | - A device of the class described comprising a brush including a back having a recess therein, a comb slidable in said recess, lugs on said comb engaging groovesin the bottom Wall of said recess to guide said comb, and means on said back engaging the teeth of the comb and acting both to clean said teeth during inward movement of the comb, and to cooperate with said lugs in guiding the comb, a pair o
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