Improvements in blocks for building,申请号GB19400017200-传众专利搜索

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发明名称	Improvements in blocks for building
摘要
申请公布号	GB545610(A)	申请公布日期	1942.06.04
申请号	GB19400017200	申请日期	1940.12.03
申请人	JAMES ALFRED COX	发明人
分类号	E04B2/12	主分类号	E04B2/12
代理机构		代理人
主权项
地址

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