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经营范围
发明名称
Synchronous driving system
摘要
申请公布号
US1809832(A)
申请公布日期
1931.06.16
申请号
US19270237346
申请日期
1927.12.02
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
CURTIS AUSTEN M.
分类号
H04L13/04
主分类号
H04L13/04
代理机构
代理人
主权项
地址
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