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发明名称
Expansion switch
摘要
申请公布号
US1948761(A)
申请公布日期
1934.02.27
申请号
US19300461325
申请日期
1930.06.16
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
KESSELRING FRITZ
分类号
H01H33/75
主分类号
H01H33/75
代理机构
代理人
主权项
地址
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