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发明名称
INFEKTIONSSCHUTZ FUER TELEFONHOERER.
摘要
申请公布号
DE1866755(U)
申请公布日期
1963.02.07
申请号
DE196200H2400U
申请日期
1962.08.21
申请人
HANS HANSEN
发明人
HANS HANSEN
分类号
主分类号
代理机构
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