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经营范围
发明名称
Apparatus for screening and aerating molding sand
摘要
申请公布号
US2034203(A)
申请公布日期
1936.03.17
申请号
US19340732005
申请日期
1934.06.23
申请人
THE BEARDSLEY & PIPER COMPANY
发明人
PIPER WALTER F.
分类号
B22C5/02;B22C5/06
主分类号
B22C5/02
代理机构
代理人
主权项
地址
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