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发明名称
Scale
摘要
申请公布号
US2023864(A)
申请公布日期
1935.12.10
申请号
US19290393349
申请日期
1929.09.18
申请人
THE JACOBS BROS. CO. INC.
发明人
WALKER GEORGE
分类号
G01G23/00
主分类号
G01G23/00
代理机构
代理人
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