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发明名称
Photoelectric tube
摘要
申请公布号
US1925054(A)
申请公布日期
1933.08.29
申请号
US19290386525
申请日期
1929.08.17
申请人
G-M LABORATORIES, INC.
发明人
MCMASTER ARCHIE J.
分类号
H01J40/04
主分类号
H01J40/04
代理机构
代理人
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