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发明名称
Exposímetro perfeccionado para máquinas fotográficas
摘要
申请公布号
ES43138(U)
申请公布日期
1957.06.16
申请号
ES19380000431U
申请日期
1954.03.24
申请人
COLL PONS, ANTONIO;PONS MERCADAL, JUAN
发明人
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主分类号
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