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发明名称
Valve
摘要
申请公布号
US2905431(A)
申请公布日期
1959.09.22
申请号
US19530379506
申请日期
1953.09.11
申请人
JAS. P. MARSH CORPORATION
发明人
GILBERT RICHARD H.
分类号
F16K31/40
主分类号
F16K31/40
代理机构
代理人
主权项
地址
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