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发明名称
Sound-absorbing structure
摘要
申请公布号
US2270825(A)
申请公布日期
1942.01.20
申请号
US19390308794
申请日期
1939.12.12
申请人
JOHNS-MANVILLE CORPORATION
发明人
PARKINSON JOHN S.;LUCIUS WILLIAM I.
分类号
G10K11/16
主分类号
G10K11/16
代理机构
代理人
主权项
地址
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