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发明名称
Verfahren zur metallographischen Untersuchung von Metallflaechen
摘要
申请公布号
DE645026(C)
申请公布日期
1937.05.20
申请号
DE1933A071910D
申请日期
1933.11.29
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
BRUECHE DR.-ING. ERNST;JOHANNSON DR.-ING. HELMUT
分类号
H01J37/285
主分类号
H01J37/285
代理机构
代理人
主权项
地址
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