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发明名称
Control means
摘要
申请公布号
US2177749(A)
申请公布日期
1939.10.31
申请号
US19380202158
申请日期
1938.04.15
申请人
SANFORD ROY S
发明人
SANFORD ROY S.
分类号
B60Q1/14
主分类号
B60Q1/14
代理机构
代理人
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