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发明名称
STEMPELKASTEN FUER WISSENSCHAFTLICHE UND LEHRZWECKE.
摘要
申请公布号
DE1604064(U)
申请公布日期
1950.03.30
申请号
DE194900D6421U
申请日期
1949.09.12
申请人
DR. WALTER KINTTOF
发明人
DR. WALTER KINTTOF
分类号
主分类号
代理机构
代理人
主权项
地址
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