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发明名称
POSITION FOLLOWING CONTROL
摘要
申请公布号
CA501943(A)
申请公布日期
1954.04.27
申请号
CAD501943
申请日期
申请人
UNITED STATES STEEL CORPORATION
发明人
WILLIAM E. COLEMAN
分类号
主分类号
代理机构
代理人
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