-
公开(公告)号:US3498785A
公开(公告)日:1970-03-03
申请号:US3498785D
申请日:1969-01-08
Applicant: POLAROID CORP
Inventor: BLOOM STANLEY N , STEPHENS ROBERT K
CPC classification number: G03C8/18 , Y10S430/167
公开(公告)号:US3498785A
公开(公告)日:1970-03-03
申请号:US3498785D
申请日:1969-01-08
Applicant: POLAROID CORP
Inventor: BLOOM STANLEY N , STEPHENS ROBERT K
CPC classification number: G03C8/18 , Y10S430/167