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发明名称
Optical signal device
摘要
申请公布号
GB9709921(D0)
申请公布日期
1997.07.09
申请号
GB19970009921
申请日期
1997.05.15
申请人
CHIEFETZ, JONATHAN
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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