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经营范围
发明名称
Improvements in or relating to hinges for the frames of spectacles and the like
摘要
申请公布号
GB557239(A)
申请公布日期
1943.11.11
申请号
GB19420005549
申请日期
1943.04.06
申请人
ROBERT JAMES FLEMING;J. & R. FLEMING LIMITED
发明人
分类号
G02C5/22
主分类号
G02C5/22
代理机构
代理人
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地址
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