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发明名称
Ventilator door
摘要
申请公布号
US1798663(A)
申请公布日期
1931.03.31
申请号
US19290401845
申请日期
1929.10.23
申请人
FRANK FITZPATRICK MARION;THOMAS VALENTIN JOHN
发明人
FITZPATRICK MARION FRANK;VALENTIN JOHN THOMAS
分类号
B61D27/00
主分类号
B61D27/00
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代理人
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