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发明名称
CONTROL VALVE
摘要
申请公布号
CA638671(A)
申请公布日期
1962.03.20
申请号
CAD638671
申请日期
申请人
THE NEW YORK AIR BRAKE COMPANY
发明人
CHARLES A. L. RUHL
分类号
主分类号
代理机构
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