Self-cooling rotary brush

申请公布号：US2994898(A)

申请号：US19580731331

申请日期：1958.04.28

申请公布日期：1961.08.08

申请人：

THE OSBORN MANUFACTURING COMPANY

发明人：BONGIOVANNI JOHN C.

分类号：A46B13/00;B24D13/10;B24D13/18

主分类号：A46B13/00

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