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公开(公告)号：US1827292A
公开(公告)日：1931-10-13
申请号：US36881329
申请日：1929-06-06
Applicant: FLEXLUME CORP
Inventor： WILBUR LAUBE LOUIS
IPC: H01J17/06
CPC classification number: H01J17/066 , H01J2893/0066
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