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发明名称
Signal structure
摘要
申请公布号
US2205169(A)
申请公布日期
1940.06.18
申请号
US19370141177
申请日期
1937.05.06
申请人
ABRAM HALLMAN
发明人
HALLMAN ABRAM
分类号
B60Q1/26;B60Q1/34
主分类号
B60Q1/26
代理机构
代理人
主权项
地址
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