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发明名称
Safety release hitch
摘要
申请公布号
US1798979(A)
申请公布日期
1931.03.31
申请号
US19290364882
申请日期
1929.05.21
申请人
GUSTAVE GRIMSRUD
发明人
GRIMSRUD GUSTAVE
分类号
B60D1/26
主分类号
B60D1/26
代理机构
代理人
主权项
地址
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