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发明名称
POSITION REFERENCE APPARATUS
摘要
申请公布号
US3455272(A)
申请公布日期
1969.07.15
申请号
USD3455272
申请日期
1966.12.30
申请人
BOEING CO.:THE
发明人
MARTIN C. ZELLER
分类号
B64D47/06;(IPC1-7):G09F9/00
主分类号
B64D47/06
代理机构
代理人
主权项
地址
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