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发明名称
Valve
摘要
申请公布号
US3028874(A)
申请公布日期
1962.04.10
申请号
US19590850214
申请日期
1959.11.02
申请人
THE DOW CHEMICAL COMPANY
发明人
BURKETT FRANCIS L.
分类号
B22D17/30;B22D39/00;B22D41/14;B22D41/60;F16K25/04;F16K49/00;F16K51/02
主分类号
B22D17/30
代理机构
代理人
主权项
地址
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