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经营范围
发明名称
Improvements in drawing compasses
摘要
申请公布号
GB728974(A)
申请公布日期
1955.04.27
申请号
GB19520028677
申请日期
1952.11.13
申请人
AKTIEBOLAGET PIAB
发明人
TELL SVEN AXEL
分类号
B43L9/02
主分类号
B43L9/02
代理机构
代理人
主权项
地址
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