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发明名称
Distance annunciator
摘要
申请公布号
US2120550(A)
申请公布日期
1938.06.14
申请号
US19360067931
申请日期
1936.03.09
申请人
AUTOMOBILE CLUB OF SOUTHERN CALIFORNIA
发明人
DOIG DON STUART
分类号
G09B29/10
主分类号
G09B29/10
代理机构
代理人
主权项
地址
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