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发明名称
An Bienenstöcken vorsetzbarer, selbsttätiger Schwarm- und Drohnenfänger.
摘要
申请公布号
AT140248(B)
申请公布日期
1935.01.10
申请号
ATD140248
申请日期
1933.03.20
申请人
CHRISTIAN GRAZE
发明人
CHRISTIAN GRAZE
分类号
主分类号
代理机构
代理人
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地址
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