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经营范围
发明名称
Coupling device
摘要
申请公布号
US2200654(A)
申请公布日期
1940.05.14
申请号
US19390264375
申请日期
1939.03.27
申请人
RUHL DAVID A
发明人
RUHL DAVID A.
分类号
B60D1/04
主分类号
B60D1/04
代理机构
代理人
主权项
地址
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