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发明名称
Method and apparatus for pulling down magnets
摘要
申请公布号
US2930944(A)
申请公布日期
1960.03.29
申请号
US19560572970
申请日期
1956.03.21
申请人
RADIO FREQUENCY LABORATORIES, INC.
发明人
YONKERS WILLIAM A.
分类号
H01F13/00
主分类号
H01F13/00
代理机构
代理人
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