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发明名称
VAKUUM-DICHTUNGSRING.
摘要
申请公布号
DE1726611(U)
申请公布日期
1956.07.19
申请号
DE195600B4699U
申请日期
1956.02.09
申请人
BERNHARD H. BUECKING
发明人
BERNHARD H. BUECKING
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主分类号
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