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发明名称
HEIZBARER FUSSAUFTRITT.
摘要
申请公布号
DE1670295(U)
申请公布日期
1954.01.14
申请号
DE195300K3805U
申请日期
1953.11.16
申请人
OTTO KNIFKA
发明人
OTTO KNIFKA
分类号
主分类号
代理机构
代理人
主权项
地址
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