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发明名称
Direct-drive electric railway truck
摘要
申请公布号
US1783269(A)
申请公布日期
1930.12.02
申请号
US19280285353
申请日期
1928.06.14
申请人
APPLE VINCENT G
发明人
APPLE VINCENT G.
分类号
B61C9/46
主分类号
B61C9/46
代理机构
代理人
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