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发明名称
Verfahren zur Verbesserung von Sonden
摘要
申请公布号
AT206844(B)
申请公布日期
1959.12.28
申请号
AT19560007030
申请日期
1956.11.22
申请人
OESTERREICHISCHE MINERALOELVERWALTUNG AKTIENGESELLSCHAFT
发明人
DR. ERNST DOLAK
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主分类号
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