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发明名称
POSITION-INDICATING DEVICE
摘要
申请公布号
CA451878(A)
申请公布日期
1948.10.12
申请号
CAD451878
申请日期
申请人
HAZELTINE CORPORATION
发明人
ARTHUR VIVIAN LOUGHREN
分类号
主分类号
代理机构
代理人
主权项
地址
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