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发明名称
METODO Y DISPOSITIVO PARA LA FUNDICIoN DE ESCALERAS DE UN TIRO EN UNIDADES PREFABRICADAS
摘要
申请公布号
ES212969(A1)
申请公布日期
1955.03.01
申请号
ES19690002129
申请日期
1953.12.30
申请人
FORSSELL, IVAN KARL
发明人
分类号
(IPC1-7):E04
主分类号
(IPC1-7):E04
代理机构
代理人
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地址
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