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经营范围
发明名称
Selector mechanism
摘要
申请公布号
US2238113(A)
申请公布日期
1941.04.15
申请号
US19370172948
申请日期
1937.11.05
申请人
HAYNSWORTH JR JOHN T;JOHNSON WILLIAM E
发明人
JR. JOHN T. HAYNSWORTH,;JOHNSON WILLIAM E.
分类号
G07F17/30
主分类号
G07F17/30
代理机构
代理人
主权项
地址
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