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经营范围
发明名称
Mounting yoke for track rail switches
摘要
申请公布号
US3267874(A)
申请公布日期
1966.08.23
申请号
US19640388095
申请日期
1964.08.07
申请人
JOHN OPIE
发明人
OPIE JOHN
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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