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发明名称
Tractor tread
摘要
申请公布号
US1891556(A)
申请公布日期
1932.12.20
申请号
US19280257774
申请日期
1928.02.28
申请人
RONK GEORGE T
发明人
RONK GEORGE T.
分类号
B62D55/20
主分类号
B62D55/20
代理机构
代理人
主权项
地址
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