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发明名称
VERKEHRS-LEHR- UND UEBUNGSSPIEL.
摘要
申请公布号
DE1799017(U)
申请公布日期
1959.10.29
申请号
DE195900V9870U
申请日期
1959.02.16
申请人
WALTER VAGT
发明人
WALTER VAGT
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主分类号
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