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发明名称
Brick and method of making same
摘要
申请公布号
US1791372(A)
申请公布日期
1931.02.03
申请号
US19290367147
申请日期
1929.05.29
申请人
PAUL JR ALFRED
发明人
JR. ALFRED PAUL,
分类号
C04B28/22
主分类号
C04B28/22
代理机构
代理人
主权项
地址
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