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发明名称
Highway crossing gate
摘要
申请公布号
US2220162(A)
申请公布日期
1940.11.05
申请号
US19380247587
申请日期
1938.12.24
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
LINDNER JOHN C.
分类号
B61L29/22
主分类号
B61L29/22
代理机构
代理人
主权项
地址
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