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发明名称
Reinigungsgeraet, insbesondere fuer Wandtafeln
摘要
申请公布号
DE647346(C)
申请公布日期
1937.07.02
申请号
DENDATH142699D
申请日期
申请人
ALFRED HESSLINGER
发明人
分类号
B43L21/00
主分类号
B43L21/00
代理机构
代理人
主权项
地址
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