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发明名称
Signal generator or modulator
摘要
申请公布号
US2459293(A)
申请公布日期
1949.01.18
申请号
US19460690822
申请日期
1946.08.15
申请人
TIMES FACSIMILE CORPORATION
发明人
SHONNARD JOHN R.
分类号
H01J40/00
主分类号
H01J40/00
代理机构
代理人
主权项
地址
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