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经营范围
发明名称
Drafting device or utility
摘要
申请公布号
US1945987(A)
申请公布日期
1934.02.06
申请号
US19320616394
申请日期
1932.06.10
申请人
WARE RODNEY B
发明人
WARE RODNEY B.
分类号
B43L7/00
主分类号
B43L7/00
代理机构
代理人
主权项
地址
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