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发明名称
Control system for concrete block machines
摘要
申请公布号
US2672669(A)
申请公布日期
1954.03.23
申请号
US19490130787
申请日期
1949.12.02
申请人
THE GENE OLSEN CORPORATION
发明人
DAVIS ROBERT O.
分类号
B28B15/00;B28B17/00
主分类号
B28B15/00
代理机构
代理人
主权项
地址
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