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发明名称
SYSTEME DE PASSAGE A NIVEAU DE VOIE FERREE
摘要
申请公布号
BE883405(A1)
申请公布日期
1980.11.21
申请号
BE19800200696
申请日期
1980.05.21
申请人
RAILROAD FRICTION PRODUCTS CORP.
发明人
J.C. KAHR;C.H. LOGAN
分类号
E01C9/04;(IPC1-7):E01C/
主分类号
E01C9/04
代理机构
代理人
主权项
地址
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