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发明名称
Rechenscheibe
摘要
申请公布号
DE834291(C)
申请公布日期
1952.03.17
申请号
DE1950H001813
申请日期
1950.02.28
申请人
ANDRE HANHART
发明人
HANHART ANDRE
分类号
G06G1/10
主分类号
G06G1/10
代理机构
代理人
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