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发明名称
Crossover for toy railways
摘要
申请公布号
US2021045(A)
申请公布日期
1935.11.12
申请号
US19340754495
申请日期
1934.11.23
申请人
AMERICAN FLYER MANUFACTURING COMPANY
发明人
BOISSELIER EARL D.
分类号
A63H19/30
主分类号
A63H19/30
代理机构
代理人
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