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发明名称
Space and numerical indicating instrument
摘要
申请公布号
US2820429(A)
申请公布日期
1958.01.21
申请号
US19540446596
申请日期
1954.07.29
申请人
GENERAL MOTORS CORPORATION
发明人
HELGEBY RALPH O.
分类号
G01P1/08
主分类号
G01P1/08
代理机构
代理人
主权项
地址
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