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经营范围
发明名称
Foundry flask construction
摘要
申请公布号
US2773290(A)
申请公布日期
1956.12.11
申请号
US19540449653
申请日期
1954.08.13
申请人
REICHERT WILLIAM G
发明人
REICHERT WILLIAM G.
分类号
B22C21/00
主分类号
B22C21/00
代理机构
代理人
主权项
地址
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