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发明名称
VERAENDERBARER WIDERSTAND
摘要
申请公布号
DE6946446(U)
申请公布日期
1970.04.16
申请号
DE19690046446U
申请日期
1969.11.28
申请人
PREH ELEKTROFEINMECHANISCHE WERKE JAKOB PREH NACHF.
发明人
分类号
主分类号
代理机构
代理人
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