Patent search ap:"PATRICK A ALESSI" Page 1

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发明授权
Color spectrum analyzer 失效
Title translation: 颜色光谱分析仪

公开(公告)号：US3421821A

公开(公告)日：1969-01-14

申请号：US3421821D

申请日：1964-12-10

Applicant: PATRICK A ALESSI

Inventor： ALESSI PATRICK A

IPC: G01J3/02 , G01J3/10 , G01J3/51 , G01N21/55 , G01J3/00 , G01J3/46 , G01J3/48

CPC classification number: G01J3/02 , G01J3/0272 , G01J3/10 , G01J3/508 , G01J3/51 , G01J3/524 , G01N21/55

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