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发明名称
DICHTUNGSRING AUS ELASTISCHEM WERKSTOFF, INSBESONDERE FUER DRUCKMITTELLEITUNGEN IM BERGBAU.
摘要
申请公布号
DE1726612(U)
申请公布日期
1956.07.19
申请号
DE195600Z4158U
申请日期
1956.05.07
申请人
HANS ZILLER
发明人
HANS ZILLER
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主分类号
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