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经营范围
发明名称
Instrument destiné au calcul des conditions d'équilibre
摘要
申请公布号
FR836183(A)
申请公布日期
1939.01.12
申请号
FRD836183
申请日期
1938.04.04
申请人
发明人
IMM LEWIS WILLIAM
分类号
G06G5/00
主分类号
G06G5/00
代理机构
代理人
主权项
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