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经营范围
发明名称
Diffraction type sound absorber with fibrous walls
摘要
申请公布号
US2488555(A)
申请公布日期
1949.11.22
申请号
US19440519879
申请日期
1944.01.27
申请人
RADIO CORPORATION
发明人
PARE VICTOR T.
分类号
E04B1/82;E04B1/84
主分类号
E04B1/82
代理机构
代理人
主权项
地址
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