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发明名称
Wechselschreibstift
摘要
申请公布号
CH321911(A)
申请公布日期
1957.05.31
申请号
CHD321911
申请日期
1954.06.03
申请人
FIRMA ADOLF WALDMANN
发明人
GOSSWEILER,OSKAR;GOSSWEILER,MANFRED;WALDMANN,ADOLF
分类号
B43K24/14
主分类号
B43K24/14
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代理人
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