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发明名称
T square
摘要
申请公布号
US2622330(A)
申请公布日期
1952.12.23
申请号
US19500161665
申请日期
1950.05.12
申请人
NEIMAN WILLIAM T
发明人
NEIMAN WILLIAM T.
分类号
B43L7/02
主分类号
B43L7/02
代理机构
代理人
主权项
地址
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