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经营范围
发明名称
Overhead rail
摘要
申请公布号
US2061857(A)
申请公布日期
1936.11.24
申请号
US19340735268
申请日期
1934.07.14
申请人
FRANK SPURRIER
发明人
SPURRIER FRANK
分类号
E01B25/24
主分类号
E01B25/24
代理机构
代理人
主权项
地址
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