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发明名称
Proportional divider
摘要
申请公布号
US1901801(A)
申请公布日期
1933.03.14
申请号
US19290351739
申请日期
1929.04.01
申请人
CHARLES CATTANEO
发明人
CATTANEO CHARLES
分类号
G01B3/16
主分类号
G01B3/16
代理机构
代理人
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