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发明名称
Sound attenuating device
摘要
申请公布号
US3011584(A)
申请公布日期
1961.12.05
申请号
US19570703020
申请日期
1957.12.16
申请人
KOPPERS COMPANY, INC.
发明人
LEMMERMAN RICHARD D.;GILDARD JAMES H.
分类号
B64F1/26
主分类号
B64F1/26
代理机构
代理人
主权项
地址
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