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发明名称
Sound transmission reduction structures
摘要
申请公布号
US1908917(A)
申请公布日期
1933.05.16
申请号
US19300487078
申请日期
1930.10.07
申请人
AMERICAN HAIR & FELT COMPANY
发明人
PHILLIPS ROBERT S.
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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