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经营范围
发明名称
MEASUREMENT OF AIRBORNE SOUND IN BUILDINGS
摘要
申请公布号
GB8716875(D0)
申请公布日期
1987.08.26
申请号
GB19870016875
申请日期
1987.07.17
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
分类号
G01H15/00
主分类号
G01H15/00
代理机构
代理人
主权项
地址
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