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经营范围
发明名称
Wechselschreibstift.
摘要
申请公布号
CH197312(A)
申请公布日期
1938.04.30
申请号
CHD197312
申请日期
1937.06.17
申请人
FEND KURT
发明人
KURT FEND
分类号
主分类号
代理机构
代理人
主权项
地址
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