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经营范围
发明名称
Water rheostat
摘要
申请公布号
US1819141(A)
申请公布日期
1931.08.18
申请号
US19270187760
申请日期
1927.04.30
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
WHITTAKER CHARLES C.
分类号
G05B11/01
主分类号
G05B11/01
代理机构
代理人
主权项
地址
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