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发明名称
Photo-cellule commandant le fonctionnement de filtres électriques
摘要
申请公布号
FR1130971(A)
申请公布日期
1957.02.14
申请号
FRD1130971
申请日期
1955.09.15
申请人
METALLGESELLSCHAFT AKTIENGESELLSCHAFT
发明人
分类号
B03C3/68
主分类号
B03C3/68
代理机构
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