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发明名称
RAILROAD SWITCHING APPARATUS
摘要
申请公布号
CA895024(A)
申请公布日期
1972.03.07
申请号
CAD895024
申请日期
申请人
ABEX CORPORATION
发明人
PAUL E. REDELMAN
分类号
主分类号
代理机构
代理人
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