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发明名称
Automatic drop door mechanism
摘要
申请公布号
US2595836(A)
申请公布日期
1952.05.06
申请号
US19460679735
申请日期
1946.06.27
申请人
EASTON CAR & CONSTRUCTION COMPANY
发明人
FRAUNFELDER GEORGE D.
分类号
B61D9/02
主分类号
B61D9/02
代理机构
代理人
主权项
地址
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