Improvements in devices for automatically controlling fire doors and the like,申请号GB19320025688-传众专利搜索

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发明名称	Improvements in devices for automatically controlling fire doors and the like
摘要
申请公布号	GB394179(A)	申请公布日期	1933.06.22
申请号	GB19320025688	申请日期	1932.09.15
申请人	ALEXANDER OTTO FISCHER	发明人
分类号	A62C2/12	主分类号	A62C2/12
代理机构		代理人
主权项
地址

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