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经营范围
发明名称
Metal covered brick
摘要
申请公布号
US1949079(A)
申请公布日期
1934.02.27
申请号
US19310576758
申请日期
1931.11.23
申请人
LOEFFLER RUDOLPH W
发明人
LOEFFLER RUDOLPH W.
分类号
E04C1/40
主分类号
E04C1/40
代理机构
代理人
主权项
地址
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