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发明名称
DOPPELT WIRKENDE, OFFENE DRAHTSPIRALE ZUR VERHINDERUNG DES VERWICKELNS VON ZULEITUNGSSCHNUEREN.
摘要
申请公布号
DE1604933(U)
申请公布日期
1950.04.13
申请号
DE194900M0416U
申请日期
1949.11.23
申请人
ALBERT MEYER
发明人
ALBERT MEYER
分类号
H01B7/24
主分类号
H01B7/24
代理机构
代理人
主权项
地址
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