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发明名称
INDICATORS FOR MAGNETIC FIELDS
摘要
申请公布号
CA477910(A)
申请公布日期
1951.10.16
申请号
CAD477910
申请日期
申请人
THE SPERRY CORPORATION
发明人
LENNOX FREDERICK BEACH
分类号
主分类号
代理机构
代理人
主权项
地址
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