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发明名称
Valve
摘要
申请公布号
US2977975(A)
申请公布日期
1961.04.04
申请号
US19570659199
申请日期
1957.05.06
申请人
CAMERON IRON WORKS, INC.
发明人
ALLEN HERBERT
分类号
F16K29/00;F16K29/02
主分类号
F16K29/00
代理机构
代理人
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