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发明名称
FENSTER- U. DGL. ROLLAEDEN.
摘要
申请公布号
DE1764823(U)
申请公布日期
1958.04.10
申请号
DE195700H6831U
申请日期
1957.12.10
申请人
WALTER HARDT
发明人
WALTER HARDT
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主分类号
代理机构
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