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发明名称
Duplex pressure proportioner
摘要
申请公布号
US2421372(A)
申请公布日期
1947.06.03
申请号
US19430510041
申请日期
1943.11.12
申请人
BURKE HAROLD J
发明人
BURKE HAROLD J.
分类号
A62C5/00
主分类号
A62C5/00
代理机构
代理人
主权项
地址
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