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经营范围
发明名称
Pilot controlled valve
摘要
申请公布号
US2055576(A)
申请公布日期
1936.09.29
申请号
US19360061246
申请日期
1936.01.28
申请人
HOLLERITH JR HERMAN
发明人
JR. HERMAN HOLLERITH,
分类号
F16K31/363
主分类号
F16K31/363
代理机构
代理人
主权项
地址
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