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发明名称
Signal devices
摘要
申请公布号
US2855583(A)
申请公布日期
1958.10.07
申请号
US19560615091
申请日期
1956.10.10
申请人
THE LIONEL CORPORATION
发明人
BONANNO JOSEPH L.
分类号
A63H19/34
主分类号
A63H19/34
代理机构
代理人
主权项
地址
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