,申请号CHD1827868D-传众专利搜索

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发明名称
摘要
申请公布号	CH1827868(A4)	申请公布日期	1971.06.15
申请号	CHD1827868D	申请日期	1968.12.06
申请人		发明人
分类号	G04B39/02	主分类号	G04B39/02
代理机构		代理人
主权项
地址

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