Combination plaster base and insulating block,申请号US19380244380-传众专利搜索

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发明名称	Combination plaster base and insulating block
摘要
申请公布号	US2249073(A)	申请公布日期	1941.07.15
申请号	US19380244380	申请日期	1938.12.07
申请人	AMERICAN CYANAMID & CHEMICAL CORPORATION	发明人	WILLIAMSON JOHN B.
分类号	E04B2/56	主分类号	E04B2/56
代理机构		代理人
主权项
地址

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