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经营范围
发明名称
Magnetic retriever
摘要
申请公布号
US2544449(A)
申请公布日期
1951.03.06
申请号
US19480019292
申请日期
1948.04.06
申请人
DUNKELBERGER MILTON S
发明人
DUNKELBERGER MILTON S.
分类号
A01K97/24;B63C7/16
主分类号
A01K97/24
代理机构
代理人
主权项
地址
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