Hollow block structure,申请号US19310514087-传众专利搜索

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发明名称	Hollow block structure
摘要
申请公布号	US1877953(A)	申请公布日期	1932.09.20
申请号	US19310514087	申请日期	1931.02.07
申请人	FEDERAL SEABOARD TERRA COTTA CORPORATION	发明人	OLSEN PETER C.
分类号	E04B2/02;E04B2/14	主分类号	E04B2/02
代理机构		代理人
主权项
地址

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