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发明名称
Screen for molding machines
摘要
申请公布号
US2176328(A)
申请公布日期
1939.10.17
申请号
US19380205573
申请日期
1938.05.02
申请人
CAMPBELL DONALD J
发明人
CAMPBELL DONALD J.
分类号
B22C5/12
主分类号
B22C5/12
代理机构
代理人
主权项
地址
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