专利内容由知识产权出版社提供
专利名称：METHODS AND MEANS FOR TREATING
SURFACES
发明人：EDWARD G. YOUNG申请号：US3655444D申请日：19690807公开号：US3655444A公开日：19720411
摘要：Oscillatory-drive machine for cleaning rugs and hard surfaces. It employs incontact with the surface of a rug, tile or floor a layer of elastic material the working faceof which has an irregular contour.
申请人：C.T. & R.E. INC.
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