Improvements in and relating to roofing tiles,申请号GB19330018909-传众专利搜索

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发明名称	Improvements in and relating to roofing tiles
摘要
申请公布号	GB419100(A)	申请公布日期	1934.11.06
申请号	GB19330018909	申请日期	1933.07.04
申请人	JOHN BENTLEY, SENIOR	发明人
分类号	E04D1/12	主分类号	E04D1/12
代理机构		代理人
主权项
地址

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