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发明名称
HALTEVORRICHTUNG FUER TELEFONHOERER.
摘要
申请公布号
DE1679862(U)
申请公布日期
1954.07.15
申请号
DE195400M4116U
申请日期
1954.02.20
申请人
WILLIAM MURRAY
发明人
WILLIAM MURRAY
分类号
主分类号
代理机构
代理人
主权项
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