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发明名称
Check-controlled mechanism
摘要
申请公布号
US1764091(A)
申请公布日期
1930.06.17
申请号
US19290360698
申请日期
1929.05.06
申请人
THE SELECTOR CORPORATION
发明人
WURZBACH HUGH E.;WADSWORTH LESLIE H.;NUTT HARRY G.
分类号
G07F5/02
主分类号
G07F5/02
代理机构
代理人
主权项
地址
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