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发明名称
DOPPELRINGDICHTUNG MIT U-FOERMIG ZUSAMMENHAENGEND UEBEREINANDERLIEGENDEN DICHTUNGSRINGFLAECHEN.
摘要
申请公布号
DE1983353(U)
申请公布日期
1968.04.11
申请号
DE196700B3389U
申请日期
1967.11.02
申请人
WERNER BLAU;RICHARD BLAU
发明人
WERNER BLAU;RICHARD BLAU
分类号
主分类号
代理机构
代理人
主权项
地址
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