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发明名称
摘要
申请公布号
JPS5220863(B1)
申请公布日期
1977.06.07
申请号
JP19700040208
申请日期
1970.05.13
申请人
发明人
分类号
G01B9/021;G03H1/04;H01S3/136;(IPC1-7):G03H1/04;G02F1/03
主分类号
G01B9/021
代理机构
代理人
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