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发明名称
Constant-speed drive
摘要
申请公布号
US1753331(A)
申请公布日期
1930.04.08
申请号
US19260112463
申请日期
1926.05.29
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
CLOKEY ALLISON A.
分类号
H04L13/04;H04N5/04
主分类号
H04L13/04
代理机构
代理人
主权项
地址
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