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发明名称
Apparatus for making concrete objects
摘要
申请公布号
US1984863(A)
申请公布日期
1934.12.18
申请号
US19310559374
申请日期
1931.08.26
申请人
BENEDICT STONE PRODUCTS COMPANY
发明人
CLARK BYRON S.;LOWELL JOHN W.
分类号
B28B1/20
主分类号
B28B1/20
代理机构
代理人
主权项
地址
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