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经营范围
发明名称
Spring scale
摘要
申请公布号
US2074628(A)
申请公布日期
1937.03.23
申请号
US19350042503
申请日期
1935.09.27
申请人
TATUM ROBERT S
发明人
TATUM ROBERT S.
分类号
G01G3/02
主分类号
G01G3/02
代理机构
代理人
主权项
地址
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