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经营范围
发明名称
Sound deadening tile
摘要
申请公布号
US3022607(A)
申请公布日期
1962.02.27
申请号
US19530395469
申请日期
1953.12.01
申请人
THE COMMONWEALTH ENGINEERING COMPANY OF OHIO
发明人
JR. HARRY A. TOULMIN,
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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