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发明名称
Vorrichtung zur Weg-Zeitmarkierung an Geraeten zur Demonstration der Bewegungsgesetze unter Verwendung eines Pendels
摘要
申请公布号
DE816916(C)
申请公布日期
1951.10.15
申请号
DE1948P025992
申请日期
1948.12.22
申请人
FA. ALBIN SPRENGER
发明人
SPRENGER ALBIN
分类号
G09B23/10
主分类号
G09B23/10
代理机构
代理人
主权项
地址
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