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发明名称
Ellipse compass
摘要
申请公布号
US3104466(A)
申请公布日期
1963.09.24
申请号
US19620239679
申请日期
1962.11.23
申请人
KING CHARLES W
发明人
KING CHARLES W.
分类号
B43L11/04
主分类号
B43L11/04
代理机构
代理人
主权项
地址
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