Дублер,申请号SU19390021563-传众专利搜索

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发明名称	Дублер
摘要
申请公布号	SU58688(A1)	申请公布日期	1939.11.30
申请号	SU19390021563	申请日期	1939.02.04
申请人	GRIGOREV V.I.	发明人	GRIGOREV V.I.
分类号	B21B47/02	主分类号	B21B47/02
代理机构		代理人
主权项
地址

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