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经营范围
发明名称
Preselector
摘要
申请公布号
US2351451(A)
申请公布日期
1944.06.13
申请号
US19430497951
申请日期
1943.08.09
申请人
GUARDIAN ELECTRIC MANUFACTURING CO.
发明人
OBSZARNY THEDORE
分类号
G05D3/12
主分类号
G05D3/12
代理机构
代理人
主权项
地址
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