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发明名称
Electric signal device
摘要
申请公布号
US2814797(A)
申请公布日期
1957.11.26
申请号
US19540468873
申请日期
1954.11.15
申请人
PAULSEN HAROLD A
发明人
PAULSEN HAROLD A.
分类号
B60K15/06;G01F23/00
主分类号
B60K15/06
代理机构
代理人
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