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经营范围
发明名称
Perfectionnements aux compas pour pilotes ou autres
摘要
申请公布号
FR749267(A)
申请公布日期
1933.07.21
申请号
FRD749267
申请日期
1932.04.12
申请人
发明人
VION EUGENE
分类号
G01C17/00
主分类号
G01C17/00
代理机构
代理人
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