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发明名称
SOUND LEVEL MONITORING APPARATUS
摘要
申请公布号
GB2032106(A)
申请公布日期
1980.04.30
申请号
GB19790031738
申请日期
1979.09.13
申请人
SUMMERS I R;MARTIN M C
发明人
分类号
G01H3/12;(IPC1-7):G01H3/12
主分类号
G01H3/12
代理机构
代理人
主权项
地址
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