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发明名称
VORRICHTUNG ZUR ERMITTLUNG VON UNDICHTIGKEITEN BEI GASROHRLEITUNGEN.
摘要
申请公布号
DE1856114(U)
申请公布日期
1962.08.09
申请号
DE196200V4072U
申请日期
1962.05.15
申请人
FA. DIPL.-ING. DR. E. VOGELSANG
发明人
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主分类号
代理机构
代理人
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