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发明名称
Apparatus for providing vacuum in molds
摘要
申请公布号
US3070857(A)
申请公布日期
1963.01.01
申请号
US19580770458
申请日期
1958.10.29
申请人
WILIBALD VENUS
发明人
VENUS WILIBALD
分类号
B22D17/14
主分类号
B22D17/14
代理机构
代理人
主权项
地址
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