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发明名称
Einrichtung an Schreibmaschinen.
摘要
申请公布号
AT162136(B)
申请公布日期
1949.01.25
申请号
ATD162136
申请日期
1947.10.15
申请人
JOSEF P. PFEFFER
发明人
JOSEF P. PFEFFER
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主分类号
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