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1.发明授权
公开(公告)号：US3501313A
公开(公告)日：1970-03-17
申请号：US3501313D
申请日：1966-10-11
Applicant: AGFA GEVAERT NV
Inventor： WILLEMS JOZEF FRANS , FAELENS PAUL , CLAES FRANS HENRI , BORGINON HENDRIK ALFONS , PATTIJN WALTER CAMIEL
CPC classification number: G03C1/09
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