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发明名称
摘要
申请公布号
JPS4730685(U)
申请公布日期
1972.12.07
申请号
JP19710031843U
申请日期
1971.04.22
申请人
发明人
分类号
F21V17/00;(IPC1-7):F21V17/00
主分类号
F21V17/00
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代理人
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