TOTAL CLOSING TYPE DIAPHRAGM DEVICE KEEPING SHAPE OF APERTURE OF SEVEN BLADES CONSTANT,申请号JP19890020993-传众专利搜索

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发明名称	TOTAL CLOSING TYPE DIAPHRAGM DEVICE KEEPING SHAPE OF APERTURE OF SEVEN BLADES CONSTANT
摘要
申请公布号	JPH02201428(A)	申请公布日期	1990.08.09
申请号	JP19890020993	申请日期	1989.01.31
申请人	NIKON CORP	发明人	KUROKAWA HIROYUKI
分类号	G03B9/06	主分类号	G03B9/06
代理机构		代理人
主权项
地址

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