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1.Photoelectric attachment for spectrometric or spectrographic apparatus 失效
Title translation: 用于光谱仪或光谱仪的光电附件公开(公告)号:US3350567A
公开(公告)日:1967-10-31
申请号:US38448564
申请日:1964-07-22
Applicant: SOUTH AFRICAN INVENTIONS
Inventor: ALBERTUS STRASHEIM
IPC: G01J3/36
CPC classification number: G01J3/36