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发明名称
Lehrspielzeug fuer Kinder
摘要
申请公布号
DE1019844(B)
申请公布日期
1957.11.21
申请号
DE1955L023229
申请日期
1955.10.19
申请人
SAMUEL G. LATTY
发明人
LATTY SAMUEL G.
分类号
G09B19/02
主分类号
G09B19/02
代理机构
代理人
主权项
地址
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