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公开(公告)号：US3091689A
公开(公告)日：1963-05-28
申请号：US76989058
申请日：1958-10-27
Applicant: ALLOYD RES CORP
Inventor： SPACIL HENRY S
CPC classification number: G01N31/005 , G21H5/00 , G21H5/02 , H01J47/08 , Y10T436/209163
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公开(公告)号：US2970215A
公开(公告)日：1961-01-31
申请号：US70832358
申请日：1958-01-10
Applicant: ALLOYD RES CORP
Inventor： SPACIL HENRY S
IPC: H01J49/34
CPC classification number: H01J49/36
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