,申请号GBD1303132-传众专利搜索

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发明名称
摘要
申请公布号	GB1303132(A)	申请公布日期	1973.01.17
申请号	GBD1303132	申请日期	1970.02.11
申请人		发明人
分类号	G09B19/02;(IPC1-7):G09B19/02	主分类号	G09B19/02
代理机构		代理人
主权项
地址

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