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发明名称
DICHTUNG.
摘要
申请公布号
DE1662885(U)
申请公布日期
1953.09.03
申请号
DE1953L008281U
申请日期
1953.07.14
申请人
FA. PAUL LECHLER
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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