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发明名称
Pressure reducing means
摘要
申请公布号
US2296145(A)
申请公布日期
1942.09.15
申请号
US19390293548
申请日期
1939.09.06
申请人
CHRISTENSEN NIELS A
发明人
CHRISTENSEN NIELS A.
分类号
G05D16/10
主分类号
G05D16/10
代理机构
代理人
主权项
地址
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