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发明名称
Railway-crossing gate
摘要
申请公布号
US1768388(A)
申请公布日期
1930.06.24
申请号
US19290361760
申请日期
1929.05.09
申请人
WILMOTH JOHN J;AUGUST MOOS
发明人
WILMOTH JOHN J.;MOOS AUGUST
分类号
B61L29/20
主分类号
B61L29/20
代理机构
代理人
主权项
地址
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