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发明名称
Magnetic compensation system
摘要
申请公布号
US2504778(A)
申请公布日期
1950.04.18
申请号
US19470748421
申请日期
1947.05.16
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
YOUNG CLARENCE H.
分类号
G01C17/38
主分类号
G01C17/38
代理机构
代理人
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地址
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