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发明名称
Farbblatthalter fuer Durchschreibebuchfuehrung
摘要
申请公布号
DE827497(C)
申请公布日期
1952.01.10
申请号
DE1949H000285
申请日期
1949.10.29
申请人
WILHELM HECK
发明人
HECK WILHELM
分类号
B41L3/02
主分类号
B41L3/02
代理机构
代理人
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地址
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