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经营范围
发明名称
Improvement in balanced oil valve and air relay assemblies for automatic pilots
摘要
申请公布号
GB586725(A)
申请公布日期
1947.03.28
申请号
GB19440009275
申请日期
1944.05.15
申请人
JACK & HEINTZ, INC.
发明人
分类号
F16K27/00
主分类号
F16K27/00
代理机构
代理人
主权项
地址
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