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发明名称
POSITIONING SYSTEM
摘要
申请公布号
US3541338(A)
申请公布日期
1970.11.17
申请号
USD3541338
申请日期
1967.01.12
申请人
INTERN. BUSINESS MACHINES CORP.
发明人
WILLIAM L. DUDA;HAROLD FLEISHER;JERRY L. REYNOLDS
分类号
G05D3/20;G11C13/04;(IPC1-7):G08C9/06
主分类号
G05D3/20
代理机构
代理人
主权项
地址
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