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发明名称
摘要
申请公布号
JPS53143498(U)
申请公布日期
1978.11.13
申请号
JP19770048546U
申请日期
1977.04.19
申请人
发明人
分类号
F41G1/38;G02B23/14;(IPC1-7):F41G1/38
主分类号
F41G1/38
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