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发明名称
DICHTUNGSRING
摘要
申请公布号
AT392146(B)
申请公布日期
1991.01.25
申请号
AT19880002508
申请日期
1988.10.11
申请人
DIETZEL GESELLSCHAFT M.B.H.
发明人
分类号
F16L17/025
主分类号
F16L17/025
代理机构
代理人
主权项
地址
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