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发明名称
Block zur Herstellung von abdruckfaehigen Spiegelschriftoriginalen
摘要
申请公布号
DE867251(C)
申请公布日期
1953.02.16
申请号
DE1950R001590
申请日期
1950.04.27
申请人
RITZERFELD WILHELM;RITZERFELD GERHARD
发明人
RITZERFELD WILHELM;RITZERFELD GERHARD
分类号
B41L1/34
主分类号
B41L1/34
代理机构
代理人
主权项
地址
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