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发明名称
Device for scribing circles
摘要
申请公布号
US2961768(A)
申请公布日期
1960.11.29
申请号
US19590846207
申请日期
1959.10.13
申请人
KRIEDER RONALD F
发明人
KRIEDER RONALD F.
分类号
B43L9/00
主分类号
B43L9/00
代理机构
代理人
主权项
地址
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