Improvements in and relating to building constructional units,申请号GB19420003270-传众专利搜索

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发明名称	Improvements in and relating to building constructional units
摘要
申请公布号	GB558073(A)	申请公布日期	1943.12.20
申请号	GB19420003270	申请日期	1942.03.12
申请人	ALBERT IVOR GREATREX	发明人
分类号	E04B1/20;E04C3/20	主分类号	E04B1/20
代理机构		代理人
主权项
地址

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