Revetment and process of laying the same,申请号US19300425985-传众专利搜索

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发明名称	Revetment and process of laying the same
摘要
申请公布号	US1892701(A)	申请公布日期	1933.01.03
申请号	US19300425985	申请日期	1930.02.05
申请人	HOFFMAN GEORGE M	发明人	HOFFMAN GEORGE M.
分类号	E02B3/12	主分类号	E02B3/12
代理机构		代理人
主权项
地址

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