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发明名称
Wechselschreibstift
摘要
申请公布号
DE805362(C)
申请公布日期
1951.05.17
申请号
DE1948P019088D
申请日期
1948.10.22
申请人
FA. AUGUST WILHELM AUGENSTEIN
发明人
AUGENSTEIN AUGUST WILHELM
分类号
B43K24/12
主分类号
B43K24/12
代理机构
代理人
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