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发明名称
Scale
摘要
申请公布号
US1812937(A)
申请公布日期
1931.07.07
申请号
US19290348827
申请日期
1929.03.21
申请人
THE JACOBS BROS. CO. INC.
发明人
DOLLACK CHARLES
分类号
G01G1/18
主分类号
G01G1/18
代理机构
代理人
主权项
地址
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