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发明名称
Indicateur de niveau à lecture intégrale
摘要
申请公布号
FR910531(A)
申请公布日期
1946.06.11
申请号
FRD910531
申请日期
1945.04.27
申请人
发明人
GAUCET JEAN-LEON
分类号
F22B37/78
主分类号
F22B37/78
代理机构
代理人
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