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经营范围
发明名称
MULTIPLE CONTROL SWITCH
摘要
申请公布号
CA310069(A)
申请公布日期
1931.04.07
申请号
CAD310069
申请日期
申请人
WILLIAM L. WALKER
发明人
WILLIAM L. WALKER
分类号
主分类号
代理机构
代理人
主权项
地址
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