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公开(公告)号：US3078388A
公开(公告)日：1963-02-19
申请号：US76992758
申请日：1958-10-27
Applicant: STAUFFER CHEMICAL CO
Inventor： HANKS CHARLES W , HUNT CHARLES D A , VANCE DAVID A
CPC classification number: H01J37/32422 , G05F1/34 , H01J1/135 , H01J37/241 , H05H1/00
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