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公开(公告)号：US3455667A
公开(公告)日：1969-07-15
申请号：US3455667D
申请日：1966-05-06
Applicant: AMERICAN OPTICAL CORP
Inventor： SNITZER ELIAS , BAZINET WILFRED P JR , HWALEK DAVID C
IPC: C03B23/047 , C03B23/207 , C03B33/06 , C03B23/22
CPC classification number: C03B33/06 , C03B23/047 , C03B23/207 , C03B2203/10 , C03B2203/12
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