Improved peephole device for a door,申请号GB19570012585-传众专利搜索

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发明名称	Improved peephole device for a door
摘要
申请公布号	GB823452(A)	申请公布日期	1959.11.11
申请号	GB19570012585	申请日期	1957.04.17
申请人	ZEEV ROSENTHAL	发明人
分类号	E06B7/30	主分类号	E06B7/30
代理机构		代理人
主权项
地址

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