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发明名称
Wall switch
摘要
申请公布号
US1860054(A)
申请公布日期
1932.05.24
申请号
US19280260743
申请日期
1928.03.10
申请人
ROLLER-SMITH COMPANY
发明人
ROLLER FRANK W.
分类号
H02B1/00
主分类号
H02B1/00
代理机构
代理人
主权项
地址
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