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经营范围
发明名称
SPECTACLE FRAMES
摘要
申请公布号
GB1519582(A)
申请公布日期
1978.08.02
申请号
GB19740017227
申请日期
1975.07.18
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
分类号
G02C5/22
主分类号
G02C5/22
代理机构
代理人
主权项
地址
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