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发明名称
SCHLUESSELLOCH-VERDUNKLER.
摘要
申请公布号
DE1658486(U)
申请公布日期
1953.07.02
申请号
DE195300H0977U
申请日期
1953.04.24
申请人
WOLFGANG HANSEN
发明人
WOLFGANG HANSEN
分类号
主分类号
代理机构
代理人
主权项
地址
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