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发明名称
Regla calculadora de pesos en materiales de fundición
摘要
申请公布号
ES69574(U)
申请公布日期
1959.01.01
申请号
ES19740000695U
申请日期
1958.11.10
申请人
ROTHE AMENABAR, GUILLERMO
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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