-
1.Light-polarizing suspension of oriented crystals of dibenzacridine periodide in cellulose acetate 失效
Title translation: 二苯吖啶季戊四醇定向结晶在乙酸纤维素中的光偏振悬浮液公开(公告)号:US2441019A
公开(公告)日:1948-05-04
申请号:US51445843
申请日:1943-12-16
Applicant: POLAROID CORP
Inventor: VLASIOS GEORGIAN , AMON JR WILLIAM F , RAIPH GOFSTEIN , LAND EDWIN H , WEST CUTLER D , WOODWARD ROBERT B
IPC: G02B5/30
CPC classification number: G02B5/3033