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发明名称
Spring scale
摘要
申请公布号
US1840346(A)
申请公布日期
1932.01.12
申请号
US19290368853
申请日期
1929.06.06
申请人
JOHN CHATILLON & SONS
发明人
AVERELL SYLVESTER G.;WASSON ROBERT BINGHAM
分类号
G01G3/04
主分类号
G01G3/04
代理机构
代理人
主权项
地址
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