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经营范围
发明名称
Dispositif de transmission étanche
摘要
申请公布号
FR1031957(A)
申请公布日期
1953.06.29
申请号
FRD1031957
申请日期
1951.02.01
申请人
发明人
LEFRANCOIS HENRI
分类号
F16J15/52
主分类号
F16J15/52
代理机构
代理人
主权项
地址
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