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发明名称
Door closing device
摘要
申请公布号
US2640609(A)
申请公布日期
1953.06.02
申请号
US19490080187
申请日期
1949.03.08
申请人
AMERICAN CAR AND FOUNDRY COMPANY
发明人
CLEWELL WILLIAM H.
分类号
B61D7/30
主分类号
B61D7/30
代理机构
代理人
主权项
地址
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