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发明名称
Building-block machine
摘要
申请公布号
US1765064(A)
申请公布日期
1930.06.17
申请号
US19270180638
申请日期
1927.04.04
申请人
EBERLING CHARLES M
发明人
EBERLING CHARLES M.
分类号
B28B5/12
主分类号
B28B5/12
代理机构
代理人
主权项
地址
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