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发明名称
Joint pour tuyaux à emboîtement
摘要
申请公布号
FR836240(A)
申请公布日期
1939.01.12
申请号
FRD836240
申请日期
1938.04.06
申请人
发明人
WILLER ARTHUR
分类号
F16L21/04
主分类号
F16L21/04
代理机构
代理人
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