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发明名称
DEVICE FOR MEASURING SOUND REFLECTION FACTOR
摘要
申请公布号
SU682816(A1)
申请公布日期
1979.08.30
申请号
SU19782607449
申请日期
1978.04.24
申请人
KOLESNIKOV ALEKSEJ E,SU
发明人
KOLESNIKOV ALEKSEJ E,SU
分类号
G01N29/00;G01N29/275;(IPC1-7):G01N29/00
主分类号
G01N29/00
代理机构
代理人
主权项
地址
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