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发明名称
Selector device
摘要
申请公布号
US2888835(A)
申请公布日期
1959.06.02
申请号
US19560593426
申请日期
1956.06.25
申请人
L. W. MENZIMER
发明人
PATZER WILLIAM A.
分类号
G07F5/18
主分类号
G07F5/18
代理机构
代理人
主权项
地址
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