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经营范围
发明名称
METHOD OF PRODUCING DIELECTRIC DIFFRACTION GRATINGS
摘要
申请公布号
GB2017331(B)
申请公布日期
1982.03.10
申请号
GB19790004222
申请日期
1979.02.07
申请人
NIPPON ELECTRIC CO LTD
发明人
分类号
G02B5/18;(IPC1-7):G02B5/18
主分类号
G02B5/18
代理机构
代理人
主权项
地址
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