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发明名称
Protractor ruler and vernier mechanism therefor
摘要
申请公布号
US2864169(A)
申请公布日期
1958.12.16
申请号
US19540408348
申请日期
1954.02.05
申请人
OTTO KLABUNDE
发明人
KLABUNDE OTTO
分类号
B43L13/08
主分类号
B43L13/08
代理机构
代理人
主权项
地址
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