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发明名称
Railroad car ventilator
摘要
申请公布号
US2367231(A)
申请公布日期
1945.01.16
申请号
US19430484889
申请日期
1943.04.28
申请人
MALLOY JOSEPH P
发明人
MALLOY JOSEPH P.
分类号
B61D27/00
主分类号
B61D27/00
代理机构
代理人
主权项
地址
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