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发明名称
Dispositif graphique destiné aux calculs routiers
摘要
申请公布号
FR1142223(A)
申请公布日期
1957.09.16
申请号
FRD1142223
申请日期
1956.03.01
申请人
发明人
CAUSSE
分类号
G06G1/00
主分类号
G06G1/00
代理机构
代理人
主权项
地址
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