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经营范围
发明名称
OPTICAL APPARATUS
摘要
申请公布号
GB1539181(A)
申请公布日期
1979.01.31
申请号
GB19740053849
申请日期
1976.05.18
申请人
NAT RES DEV CORP
发明人
分类号
G01B11/00;G01B11/27;G01D5/26;G02B27/44;(IPC1-7):01B11/14
主分类号
G01B11/00
代理机构
代理人
主权项
地址
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