Improvements in colored concrete,申请号GB19330031112-传众专利搜索

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发明名称	Improvements in colored concrete
摘要
申请公布号	GB431680(A)	申请公布日期	1935.07.08
申请号	GB19330031112	申请日期	1933.11.08
申请人	DEWEY AND ALMY LIMITED	发明人
分类号	C04B24/22	主分类号	C04B24/22
代理机构		代理人
主权项
地址

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