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发明名称
Electric switch mechanism
摘要
申请公布号
US2248674(A)
申请公布日期
1941.07.08
申请号
US19390300041
申请日期
1939.10.18
申请人
THE RUDOLPH WURLITZER COMPANY
发明人
HULL CHARLES J.
分类号
G04F3/02
主分类号
G04F3/02
代理机构
代理人
主权项
地址
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