发明名称 Rotatable floor treating pad
摘要 A rotatable floor treating pad is provided by uniformly modifying a strip of conformable low-density abrasive product to provide an expandable zone on one side, a contractable zone on the other side, or both, each or a combination of which permits formation of the strip into an annulus without buckling, forming an annulus of the strip and setting the formed annulus to cause it to maintain its shape.
申请公布号 US4271640(A) 申请公布日期 1981.06.09
申请号 US19790047886 申请日期 1979.06.12
申请人 MINNESOTA MINING AND MANUFACTURING COMPANY 发明人 GADBOIS, RICHARD T.;MATTHEWS, RICHARD A.
分类号 A47L11/164;B24D13/08;(IPC1-7):B24D11/02;B24D3/32 主分类号 A47L11/164
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