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经营范围
发明名称
Scribe holding ruler
摘要
申请公布号
US2489830(A)
申请公布日期
1949.11.29
申请号
US19460668249
申请日期
1946.05.08
申请人
STONE GUTHRIE B
发明人
STONE GUTHRIE B.
分类号
B25H7/04
主分类号
B25H7/04
代理机构
代理人
主权项
地址
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