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发明名称
Zeichengeraet zur Konstruktion der Zentriwinkel regelmaessiger Vielecke und zur Konstruktion beliebiger Winkel
摘要
申请公布号
DE849758(C)
申请公布日期
1952.09.18
申请号
DE1951SC06544
申请日期
1951.05.06
申请人
SCHOELSS ALOIS
发明人
SCHOELSS ALOIS
分类号
B43L13/00
主分类号
B43L13/00
代理机构
代理人
主权项
地址
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