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发明名称
Tone generator
摘要
申请公布号
US2179237(A)
申请公布日期
1939.11.07
申请号
US19360074873
申请日期
1936.04.17
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
STIBITZ GEORGE R.
分类号
G10H3/02
主分类号
G10H3/02
代理机构
代理人
主权项
地址
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