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经营范围
发明名称
Improvements in combined callipers and compasses or dividers
摘要
申请公布号
GB349598(A)
申请公布日期
1931.05.22
申请号
GB19300005910
申请日期
1930.02.22
申请人
EDWARD PATRICK COYNE
发明人
分类号
G01B3/24
主分类号
G01B3/24
代理机构
代理人
主权项
地址
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