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发明名称
Signaling box lock
摘要
申请公布号
US1888859(A)
申请公布日期
1932.11.22
申请号
US19290395013
申请日期
1929.09.25
申请人
ASSOCIATED ELECTRIC LABORATORIES, INC.
发明人
JUST JOHN
分类号
G08B25/12
主分类号
G08B25/12
代理机构
代理人
主权项
地址
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