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经营范围
发明名称
SOUND ABSORBING STRUCTURE
摘要
申请公布号
EG14896(A)
申请公布日期
1986.12.30
申请号
EG19800000008
申请日期
1980.01.05
申请人
DEMPA A/S
发明人
分类号
E04B1/86;E04B1/84
主分类号
E04B1/86
代理机构
代理人
主权项
地址
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