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发明名称
Rechenscheibe zur Berechnung von goldenen Proportionswerten
摘要
申请公布号
DE29817778(U1)
申请公布日期
1999.01.21
申请号
DE19982017778U
申请日期
1998.09.21
申请人
RASCHE, THOMAS, 10999 BERLIN, DE
发明人
分类号
G06C1/00;G06G1/00;(IPC1-7):G06C1/00;G11B23/03
主分类号
G06C1/00
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代理人
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