Improvements relating to indicators for use with door fastenings,申请号GB19340005697-传众专利搜索

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发明名称	Improvements relating to indicators for use with door fastenings
摘要
申请公布号	GB426832(A)	申请公布日期	1935.04.10
申请号	GB19340005697	申请日期	1934.02.21
申请人	WILLIAM HENRY TONKS;WALTER SPARKS	发明人
分类号	E05B41/00	主分类号	E05B41/00
代理机构		代理人
主权项
地址

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