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发明名称
Wechselbleistift.
摘要
申请公布号
AT149225(B)
申请公布日期
1937.04.10
申请号
ATD149225
申请日期
1936.06.06
申请人
KURT FEND
发明人
KURT FEND
分类号
B43K24/12
主分类号
B43K24/12
代理机构
代理人
主权项
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