Устройство для интегрирования и дифференцирования кривых,申请号SU19370003069-传众专利搜索

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发明名称	Устройство для интегрирования и дифференцирования кривых
摘要
申请公布号	SU61120(A1)	申请公布日期	1941.11.30
申请号	SU19370003069	申请日期	1937.10.31
申请人	SHTYKAN A.B.	发明人	SHTYKAN A.B.
分类号	B43L11/00	主分类号	B43L11/00
代理机构		代理人
主权项
地址

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