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发明名称
Spectrograph device
摘要
申请公布号
US2683220(A)
申请公布日期
1954.07.06
申请号
US19490097265
申请日期
1949.06.04
申请人
GENERAL ANILINE & FILM CORPORATION
发明人
GROSS SIEGFRIED T.
分类号
G01J3/42
主分类号
G01J3/42
代理机构
代理人
主权项
地址
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