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发明名称
HALTEVORRICHTUNG FUER BUECHER.
摘要
申请公布号
DE1639454(U)
申请公布日期
1952.06.05
申请号
DE195200E2619U
申请日期
1952.04.01
申请人
AUGUST VON ELM
发明人
AUGUST VON ELM
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主分类号
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