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发明名称
Perfectionnements aux joints composites
摘要
申请公布号
FR918254(A)
申请公布日期
1947.02.04
申请号
FRD918254
申请日期
1945.08.02
申请人
发明人
BOLARD ALFRED
分类号
F16L19/03;F16L23/22
主分类号
F16L19/03
代理机构
代理人
主权项
地址
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