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发明名称
Reinigungsgeraet, insbesondere fuer Schulwandtafeln
摘要
申请公布号
DE816502(C)
申请公布日期
1951.10.11
申请号
DE1950H001129
申请日期
1950.01.04
申请人
HESSLINGER ALFRED
发明人
HESSLINGER ALFRED
分类号
B43L21/00
主分类号
B43L21/00
代理机构
代理人
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