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发明名称
Verfahren zur Herstellung von gegossenen Gegenständen aus Eruptivgesteinen oder ihren Mischungen.
摘要
申请公布号
AT123846(B)
申请公布日期
1931.07.25
申请号
ATD123846
申请日期
1926.11.18
申请人
DR. CARL KRUEGER
发明人
DR. CARL KRUEGER
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