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经营范围
发明名称
Rolling attachment for motor vehicles
摘要
申请公布号
US2315397(A)
申请公布日期
1943.03.30
申请号
US19400372275
申请日期
1940.12.30
申请人
JOHN BUTLER
发明人
BUTLER JOHN
分类号
E01C19/26
主分类号
E01C19/26
代理机构
代理人
主权项
地址
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