Двойной щит на четыре открытия,申请号SU19300067064-传众专利搜索

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发明名称	Двойной щит на четыре открытия
摘要
申请公布号	SU21399(A1)	申请公布日期	1931.07.31
申请号	SU19300067064	申请日期	1930.03.25
申请人	PETRASHEN V.V.	发明人	PETRASHEN V.V.
分类号	E05F13/02	主分类号	E05F13/02
代理机构		代理人
主权项
地址

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