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经营范围
发明名称
Rayproof structure
摘要
申请公布号
US1780108(A)
申请公布日期
1930.10.28
申请号
US19290348509
申请日期
1929.03.20
申请人
BARRY DAVID H
发明人
BARRY DAVID H.
分类号
E04B1/92
主分类号
E04B1/92
代理机构
代理人
主权项
地址
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