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经营范围
发明名称
Miter square
摘要
申请公布号
US1806396(A)
申请公布日期
1931.05.19
申请号
US19270232758
申请日期
1927.11.12
申请人
HUBERT HARTWELL
发明人
HARTWELL HUBERT
分类号
G01B3/56
主分类号
G01B3/56
代理机构
代理人
主权项
地址
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