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经营范围
发明名称
Perfectionnement aux pistons pour instruments à vent
摘要
申请公布号
FR1092895(A)
申请公布日期
1955.04.27
申请号
FRD1092895
申请日期
1954.02.09
申请人
COUESNON
发明人
分类号
G10D9/04
主分类号
G10D9/04
代理机构
代理人
主权项
地址
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