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发明名称
Traction device
摘要
申请公布号
US2683495(A)
申请公布日期
1954.07.13
申请号
US19500199875
申请日期
1950.12.08
申请人
KOPCZYNSKI JOHN F
发明人
KOPCZYNSKI JOHN F.
分类号
B62D61/00
主分类号
B62D61/00
代理机构
代理人
主权项
地址
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