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发明名称
Traction device
摘要
申请公布号
US2231203(A)
申请公布日期
1941.02.11
申请号
US19380238473
申请日期
1938.11.02
申请人
STRAWN OSCAR B
发明人
STRAWN OSCAR B.
分类号
B60B15/16
主分类号
B60B15/16
代理机构
代理人
主权项
地址
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