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发明名称
Verfahren zur Herstellung von Formmasken
摘要
申请公布号
CH379065(A)
申请公布日期
1964.06.30
申请号
CH19590071832
申请日期
1959.04.10
申请人
HOWE SOUND COMPANY
发明人
OPERHALL,THEODORE
分类号
B22C1/16;B22C23/00
主分类号
B22C1/16
代理机构
代理人
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