Improvements in or relating to hollow building slabs and to buildings and doors embodying such slabs,申请号GB19360014555-传众专利搜索

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发明名称	Improvements in or relating to hollow building slabs and to buildings and doors embodying such slabs
摘要
申请公布号	GB475533(A)	申请公布日期	1937.11.22
申请号	GB19360014555	申请日期	1936.05.22
申请人	EMIL BECKER	发明人
分类号	E04C2/36	主分类号	E04C2/36
代理机构		代理人
主权项
地址

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