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发明名称
Railway switch track safety device
摘要
申请公布号
US2195110(A)
申请公布日期
1940.03.26
申请号
US19390269934
申请日期
1939.04.25
申请人
PAUL JARGICK PETER
发明人
JARGICK PETER PAUL
分类号
B61L5/00
主分类号
B61L5/00
代理机构
代理人
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