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公开(公告)号：US3343449A
公开(公告)日：1967-09-26
申请号：US52632466
申请日：1966-02-07
Applicant: PHOTO RES CORP
Inventor： RICHARD BLACKWELL HAROLD , FRY GLENN A , PRITCHARD MILDRED M
CPC classification number: G01J1/42 , G01J1/04 , G01J1/0455 , G01J1/0474
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