METHOD OF MAKING A CONCRETE SLAB AND EXPANSION JOINT THEREFOR,申请号PL19870268230-传众专利搜索

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发明名称	METHOD OF MAKING A CONCRETE SLAB AND EXPANSION JOINT THEREFOR
摘要
申请公布号	PL154686(B1)	申请公布日期	1991.09.30
申请号	PL19870268230	申请日期	1987.10.14
申请人		发明人
分类号	B28B;B28B1/14;(IPC1-7):B28B1/14	主分类号	B28B
代理机构		代理人
主权项
地址

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