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发明名称
Method of making building units
摘要
申请公布号
US1956607(A)
申请公布日期
1934.05.01
申请号
US19300504740
申请日期
1930.12.26
申请人
AMERICAN FACE BRICK RESEARCH CORPORATION
发明人
WYATT EDWIN M.;SLIDELL KEMPER
分类号
B28B3/12;B28B3/22;B28B13/02
主分类号
B28B3/12
代理机构
代理人
主权项
地址
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