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发明名称
VALVE SEATING RING
摘要
申请公布号
CA782460(A)
申请公布日期
1968.04.09
申请号
CAD782460
申请日期
申请人
SAUNDERS VALVE COMPANY LIMITED
发明人
FREDERICK W. BILLSON
分类号
主分类号
代理机构
代理人
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地址
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