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发明名称
摘要
申请公布号
BE728501(A)
申请公布日期
1969.08.18
申请号
BE19690728501
申请日期
1969.02.17
申请人
发明人
分类号
B60B;B60C11/00;B60C11/01;B60C11/03;B60C11/04
主分类号
B60B
代理机构
代理人
主权项
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