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经营范围
发明名称
Improvements in or relating to measuring scales or rulers
摘要
申请公布号
GB594027(A)
申请公布日期
1947.10.31
申请号
GB19450015985
申请日期
1945.06.22
申请人
ERNST HOPPLER
发明人
分类号
B43L7/00
主分类号
B43L7/00
代理机构
代理人
主权项
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