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发明名称
IMPROVEMENTS IN OR RELATING TO BUTTERFLY VALVES
摘要
申请公布号
GB1201300(A)
申请公布日期
1970.08.05
申请号
GB19690041094
申请日期
1967.08.01
申请人
DRESSER INDUSTRIES, INC.
发明人
DONALD LEON GEISELMAN
分类号
F16K1/226
主分类号
F16K1/226
代理机构
代理人
主权项
地址
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