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发明名称
Zeichengeraet zum Zeichnen von Ellipsen
摘要
申请公布号
DE1923322(A1)
申请公布日期
1969.11.20
申请号
DE19691923322
申请日期
1969.05.07
申请人
ELLIPSTRUMENTS LTD.
发明人
BROWN,GEORG
分类号
B43L11/055;F04F9/00
主分类号
B43L11/055
代理机构
代理人
主权项
地址
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