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发明名称
摘要
申请公布号
JPH0134180(Y2)
申请公布日期
1989.10.18
申请号
JP19830142129U
申请日期
1983.09.13
申请人
发明人
分类号
G03B27/20;(IPC1-7):G03B27/20
主分类号
G03B27/20
代理机构
代理人
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地址
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