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发明名称
DUPLEX DISK VALVE
摘要
申请公布号
CA330820(A)
申请公布日期
1933.03.14
申请号
CAD330820
申请日期
申请人
HUDSON D. RICE, JR.;JAMES M. BABB
发明人
JAMES M. BABB;HUDSON D. RICE, JR.
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