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发明名称
Speed warning
摘要
申请公布号
US2771597(A)
申请公布日期
1956.11.20
申请号
US19550550333
申请日期
1955.12.01
申请人
FREEDMAN LOUIS H
发明人
FREEDMAN LOUIS H.
分类号
B60Q1/54;G01P1/11
主分类号
B60Q1/54
代理机构
代理人
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地址
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