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发明名称
FAIL SAFE GATE VALVES
摘要
申请公布号
GB8301744(D0)
申请公布日期
1983.02.23
申请号
GB19830001744
申请日期
1983.01.21
申请人
AVA INTERNATIONAL CORPORATION
发明人
分类号
F16K17/36;F16K31/143;F16K37/00;(IPC1-7):F16K3/26
主分类号
F16K17/36
代理机构
代理人
主权项
地址
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