Highway joint constructions,申请号US19540450955-传众专利搜索

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发明名称	Highway joint constructions
摘要
申请公布号	US2858749(A)	申请公布日期	1958.11.04
申请号	US19540450955	申请日期	1954.08.19
申请人	CRONE ALFRED F	发明人	CRONE ALFRED F.
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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