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发明名称
SINGLE BEAM REFERENCE SYSTEM FOR RAILWAY SURVEYING
摘要
申请公布号
GB1604565(A)
申请公布日期
1981.12.09
申请号
GB19800040698
申请日期
1978.05.30
申请人
CANRON CORP
发明人
分类号
G01C7/00;E01B35/00;G01B5/00;G01B21/00;G01B21/20;(IPC1-7):E01B35/00
主分类号
G01C7/00
代理机构
代理人
主权项
地址
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