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经营范围
发明名称
Lernapparat
摘要
申请公布号
CH425284(A)
申请公布日期
1966.11.30
申请号
CH19640011026
申请日期
1964.08.21
申请人
STILLIT,GERALD BARRY
发明人
BARRY STILLIT,GERALD
分类号
G09B7/06
主分类号
G09B7/06
代理机构
代理人
主权项
地址
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