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发明名称
EIN- ODER ZWEIBETTIGE TAGESDECKE.
摘要
申请公布号
DE1643299(U)
申请公布日期
1952.09.04
申请号
DE195200R4288U
申请日期
1952.04.12
申请人
RHEINISCHE DAUNENDEKKENFABRIKEN DUELTGEN & BILLERBECK
发明人
分类号
主分类号
代理机构
代理人
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