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经营范围
发明名称
Gate crossing apparatus
摘要
申请公布号
US3418750(A)
申请公布日期
1968.12.31
申请号
US19660548555
申请日期
1966.05.09
申请人
MATTEL, INC.
发明人
RYAN JOHN W.;MEGGS DANIEL H.
分类号
A63H18/02
主分类号
A63H18/02
代理机构
代理人
主权项
地址
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