Longitudinal road joint support,申请号US19470777485-传众专利搜索

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发明名称	Longitudinal road joint support
摘要
申请公布号	US2531899(A)	申请公布日期	1950.11.28
申请号	US19470777485	申请日期	1947.10.02
申请人	WEBB ELMER J	发明人	WEBB ELMER J.
分类号	E01C11/14	主分类号	E01C11/14
代理机构		代理人
主权项
地址

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