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经营范围
发明名称
Diaphragm device
摘要
申请公布号
US4974001(A)
申请公布日期
1990.11.27
申请号
US19890445755
申请日期
1989.12.04
申请人
NIKON CORPORATION
发明人
WATANABE, TSUNEO;KODAKA, YOSHIRO
分类号
G03B9/02;G03B9/06
主分类号
G03B9/02
代理机构
代理人
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地址
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