Приспособление для увеличений на бумажной ленте,申请号SU19310087152-传众专利搜索

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发明名称	Приспособление для увеличений на бумажной ленте
摘要
申请公布号	SU29338(A1)	申请公布日期	1933.02.28
申请号	SU19310087152	申请日期	1931.04.19
申请人	MATKOVICH R.S.	发明人	MATKOVICH R.S.
分类号	G03B27/58	主分类号	G03B27/58
代理机构		代理人
主权项
地址

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