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发明名称
Signal device
摘要
申请公布号
US2098742(A)
申请公布日期
1937.11.09
申请号
US19330670696
申请日期
1933.05.12
申请人
CONNECTICUT TELEPHONE AND ELECTRIC CORPORATION
发明人
CURTISS WILLIAM R.
分类号
B60Q1/38
主分类号
B60Q1/38
代理机构
代理人
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地址
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