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经营范围
发明名称
Schwammbefeuchter fuer Wandtafeln
摘要
申请公布号
DE660125(C)
申请公布日期
1938.11.19
申请号
DE1934F077506D
申请日期
1934.05.06
申请人
OTTO FREIBERG;EMIL SCHIESS
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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