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发明名称
Car construction
摘要
申请公布号
US1893494(A)
申请公布日期
1933.01.10
申请号
US19300437643
申请日期
1930.03.21
申请人
THE YOUNGSTOWN STEEL DOOR COMPANY
发明人
DITCHFIELD FRANK
分类号
B61D19/00
主分类号
B61D19/00
代理机构
代理人
主权项
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