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发明名称
Raccord perfectionné
摘要
申请公布号
FR1473169(A)
申请公布日期
1967.03.17
申请号
FR19660046520
申请日期
1966.01.19
申请人
发明人
GROMELLE RAYMOND, EMILE
分类号
F16L37/02;F16L37/04
主分类号
F16L37/02
代理机构
代理人
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