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经营范围
发明名称
Sound absorber
摘要
申请公布号
US2882989(A)
申请公布日期
1959.04.21
申请号
US19560622581
申请日期
1956.11.16
申请人
VILHELM BRUEL PER;ELOF TEGNER CARL-AXEL
发明人
BRUEL PER VILHELM;TEGNER CARL-AXEL ELOF
分类号
E04B1/82;G10K11/16
主分类号
E04B1/82
代理机构
代理人
主权项
地址
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