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发明名称
EKSPANDERENDE RING
摘要
申请公布号
DK493578(A)
申请公布日期
1980.05.07
申请号
DK19780004935
申请日期
1978.11.06
申请人
PETERSEN C G
发明人
PETERSEN C G
分类号
F16B;F16B21/18;G01N33/38;(IPC1-7):F16B/
主分类号
F16B
代理机构
代理人
主权项
地址
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