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发明名称
Signaling device
摘要
申请公布号
US2235281(A)
申请公布日期
1941.03.18
申请号
US19380203343
申请日期
1938.04.21
申请人
CARVER HORACE N
发明人
CARVER HORACE N.
分类号
B60Q7/00
主分类号
B60Q7/00
代理机构
代理人
主权项
地址
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