Hollow plug for walls,申请号US19380228546-传众专利搜索

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发明名称	Hollow plug for walls
摘要
申请公布号	US2148977(A)	申请公布日期	1939.02.28
申请号	US19380228546	申请日期	1938.09.06
申请人	BUCK GEORGE D	发明人	BUCK GEORGE D.
分类号	F16B13/06	主分类号	F16B13/06
代理机构		代理人
主权项
地址

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