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发明名称
Core-bar extractor
摘要
申请公布号
US1792801(A)
申请公布日期
1931.02.17
申请号
US19290368548
申请日期
1929.06.05
申请人
VALLEY MOULD AND IRON CORPORATION
发明人
BLACKWELL HOWARD
分类号
B22D7/06
主分类号
B22D7/06
代理机构
代理人
主权项
地址
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