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发明名称
DOPPELWANDIGER BECHER.
摘要
申请公布号
DE7005876(U)
申请公布日期
1970.08.20
申请号
DE19700005876U
申请日期
1970.02.19
申请人
DR. HEINZE & CO TECHNISCHE MINERALOGIE
发明人
ERFMANN, HANS-DIETER
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