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公开(公告)号：US3320415A
公开(公告)日：1967-05-16
申请号：US45625965
申请日：1965-05-17
Applicant: CORNING GLASS WORKS
Inventor： NEAL FRANKLIN M , RYAN JOHN D
IPC: F21V5/00
CPC classification number: F21V5/00
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