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公开(公告)号：US2880494A
公开(公告)日：1959-04-07
申请号：US51588255
申请日：1955-06-16
Applicant: SYLVANIA ELECTRIC PROD
Inventor： GARDNER ROLAND M , YEO ERNEST E , PRESTON ALBERT E
IPC: C03B23/00
CPC classification number: C03B23/0093 , Y10S269/908 , Y10T279/17196
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