Corrugated sheet metal structural members,申请号US19620198568-传众专利搜索

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发明名称	Corrugated sheet metal structural members
摘要
申请公布号	US3243930(A)	申请公布日期	1966.04.05
申请号	US19620198568	申请日期	1962.05.29
申请人	NATIONAL GYPSUM COMPANY	发明人	SLOWINSKI ROBERT H.
分类号	E04B2/74;E04B2/78;E04C3/32	主分类号	E04B2/74
代理机构		代理人
主权项
地址

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