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发明名称
PERFECCIONAMIENTOS EN INSTRUMENTOS PARA ESCRIBIR CON DEPoSITO
摘要
申请公布号
ES179114(A1)
申请公布日期
1947.10.01
申请号
ES19140001791
申请日期
1947.07.28
申请人
GEORGE MARTIN, HENRY
发明人
分类号
(IPC1-7):B43
主分类号
(IPC1-7):B43
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代理人
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