SYSTEM FOR PREVENTION OF FROST HEAVES IN HIGHWAYS,申请号CA19700092512-传众专利搜索

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发明名称	SYSTEM FOR PREVENTION OF FROST HEAVES IN HIGHWAYS
摘要
申请公布号	CA918598(A)	申请公布日期	1973.01.09
申请号	CA19700092512	申请日期	1970.09.08
申请人	PETERSON E C	发明人	PETERSON E C
分类号		主分类号
代理机构		代理人
主权项
地址

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