Секретный затвор без ключа,申请号SU19270018546-传众专利搜索

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法人/股东/高管

发明名称	Секретный затвор без ключа
摘要
申请公布号	SU16068(A1)	申请公布日期	1930.07.31
申请号	SU19270018546	申请日期	1927.08.02
申请人	GUREVICH S.B.	发明人	GUREVICH S.B.
分类号	E05B37/20;E05B53/00	主分类号	E05B37/20
代理机构		代理人
主权项
地址

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