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经营范围
发明名称
SEMICONDUCTOR LASER DEVICE
摘要
申请公布号
JPS6091692(U)
申请公布日期
1985.06.22
申请号
JP19830181980U
申请日期
1983.11.24
申请人
发明人
分类号
E21B10/44;E21B10/58;(IPC1-7):E21B10/44
主分类号
E21B10/44
代理机构
代理人
主权项
地址
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