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发明名称
Throttling valve
摘要
申请公布号
US2403751(A)
申请公布日期
1946.07.09
申请号
US19450583758
申请日期
1945.03.20
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
PALMER JEWELL S.
分类号
B24C7/00
主分类号
B24C7/00
代理机构
代理人
主权项
地址
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