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经营范围
发明名称
Gauge
摘要
申请公布号
US1782002(A)
申请公布日期
1930.11.18
申请号
US19260120084
申请日期
1926.07.02
申请人
CROWELL HENRY W
发明人
CROWELL HENRY W.
分类号
G01N25/56
主分类号
G01N25/56
代理机构
代理人
主权项
地址
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