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发明名称
摘要
申请公布号
JPS57182956(U)
申请公布日期
1982.11.19
申请号
JP19810072019U
申请日期
1981.05.18
申请人
发明人
分类号
G03B15/05;G08B23/00;G08B29/18;H04B10/00;H04B10/116;H04Q9/00;H05B41/30;H05B41/32
主分类号
G03B15/05
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代理人
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