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发明名称
Vorrichtung zum Messen der Zeitdauer von Schweissvorgaengen
摘要
申请公布号
DE578251(C)
申请公布日期
1933.06.12
申请号
DE1931S099978D
申请日期
1931.06.24
申请人
SIEMENS-SCHUCKERTWERKE AKT.-GES.
发明人
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主分类号
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