PREPARING SNOW SURFACE FOR SKIING AND OTHER SNOW SPORTS,申请号USD3496843-传众专利搜索

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发明名称	PREPARING SNOW SURFACE FOR SKIING AND OTHER SNOW SPORTS
摘要
申请公布号	US3496843(A)	申请公布日期	1970.02.24
申请号	USD3496843	申请日期	1968.04.29
申请人	VALLEY ENG. INC.	发明人	OTTO H. WALLINGFORD
分类号	E01H4/02;E01H5/12;(IPC1-7):E01C19/28	主分类号	E01H4/02
代理机构		代理人
主权项
地址

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