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发明名称
Sperrvorrichtung für die Papierwalze von Schreibmaschinen.
摘要
申请公布号
AT125976(B)
申请公布日期
1931.12.28
申请号
ATD125976
申请日期
1928.08.17
申请人
OSKAR KOEHLER
发明人
OSKAR KOEHLER
分类号
主分类号
代理机构
代理人
主权项
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