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发明名称
摘要
申请公布号
JPS533649(B2)
申请公布日期
1978.02.08
申请号
JP19720102028
申请日期
1972.10.12
申请人
发明人
分类号
G03B7/08;G03B9/64
主分类号
G03B7/08
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