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发明名称
Mechanischer Rechenreiniger für gerade Rechen.
摘要
申请公布号
AT121587(B)
申请公布日期
1931.02.25
申请号
ATD121587
申请日期
1928.04.07
申请人
ING. MAX MAYER
发明人
ING. MAX MAYER
分类号
主分类号
代理机构
代理人
主权项
地址
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