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经营范围
发明名称
Vacuum controlled air vent
摘要
申请公布号
US2585236(A)
申请公布日期
1952.02.12
申请号
US19500154354
申请日期
1950.04.06
申请人
HAROLD J. STONER
发明人
FITZGERALD PAUL H.
分类号
F02M1/10;F02M17/34;F02M35/04
主分类号
F02M1/10
代理机构
代理人
主权项
地址
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