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经营范围
发明名称
Photoelectric tube
摘要
申请公布号
US2174537(A)
申请公布日期
1939.10.03
申请号
US19370167282
申请日期
1937.10.04
申请人
WILLIAM H. WOODIN, JR.
发明人
SOLLER WALTER
分类号
H01J40/16
主分类号
H01J40/16
代理机构
代理人
主权项
地址
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