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发明名称
Traffic signal for automobiles and the like
摘要
申请公布号
US1961491(A)
申请公布日期
1934.06.05
申请号
US19280309519
申请日期
1928.10.01
申请人
HERSH WILLIAM R
发明人
HERSH WILLIAM R.
分类号
B60Q1/36
主分类号
B60Q1/36
代理机构
代理人
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