Improvements in keyhole plates,申请号GB19350016505-传众专利搜索

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发明名称	Improvements in keyhole plates
摘要
申请公布号	GB444997(A)	申请公布日期	1936.04.01
申请号	GB19350016505	申请日期	1935.06.06
申请人	ANTONIO OTILIO RUFINO	发明人
分类号	E05B17/18	主分类号	E05B17/18
代理机构		代理人
主权项
地址

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