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经营范围
发明名称
An improved surveyor's plotting instrument
摘要
申请公布号
GB395303(A)
申请公布日期
1933.07.13
申请号
GB19330007574
申请日期
1933.03.13
申请人
YOUNG BOOKER
发明人
分类号
G01C17/12
主分类号
G01C17/12
代理机构
代理人
主权项
地址
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