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发明名称
EINRICHTUNG ZUM VERSCHLUSS UND ZUR ABDICHTUNG VON OEFFNUNGEN, BEISPIELSWEISE VON SCHRAENKEN.
摘要
申请公布号
DE1643549(U)
申请公布日期
1952.09.11
申请号
DE195000I0765U
申请日期
1950.10.21
申请人
INTERNATIONAL GENERAL ELECTRIC COMPANY, INC.
发明人
分类号
主分类号
代理机构
代理人
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