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经营范围
发明名称
Process and product of reenforcing bloated building material
摘要
申请公布号
US1877136(A)
申请公布日期
1932.09.13
申请号
US19300465512
申请日期
1930.07.03
申请人
AMERICAN FACE BRICK RESEARCH CORPORATION
发明人
LEE SHERMAN Q.
分类号
B28B23/02
主分类号
B28B23/02
代理机构
代理人
主权项
地址
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