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发明名称
Einrichtung zum Vorschalten vor elektrische Graviereinrichtungen.
摘要
申请公布号
CH220813(A)
申请公布日期
1942.04.30
申请号
CHD220813
申请日期
1941.07.08
申请人
STEIN,MAX
发明人
STEIN,MAX
分类号
H01F29/10
主分类号
H01F29/10
代理机构
代理人
主权项
地址
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