OPTICAL VARIABLE ATTENUATOR,申请号JP19890037121-传众专利搜索

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发明名称	OPTICAL VARIABLE ATTENUATOR
摘要
申请公布号	JPH02214806(A)	申请公布日期	1990.08.27
申请号	JP19890037121	申请日期	1989.02.16
申请人	ANDO ELECTRIC CO LTD	发明人	FUKUDA MASAHIKO
分类号	G02B26/02	主分类号	G02B26/02
代理机构		代理人
主权项
地址

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