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发明名称
Check-controlled switch mechanism
摘要
申请公布号
US1760655(A)
申请公布日期
1930.05.27
申请号
US19280324620
申请日期
1928.12.08
申请人
MEYER JOHN F
发明人
MEYER JOHN F.
分类号
G07F5/10
主分类号
G07F5/10
代理机构
代理人
主权项
地址
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