Patent search ap:("PHILIPS CORP") AND inv:"GEORG ERMRICH WINFRIED" Page 1

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发明授权
Ion pump 失效

公开(公告)号：US2988657A

公开(公告)日：1961-06-13

申请号：US82696159

申请日：1959-07-14

Applicant: PHILIPS CORP

Inventor： MARTIN KLOPFER ANTON , GEORG ERMRICH WINFRIED

IPC: H01J29/94 , H01J41/16 , H01J41/20

CPC classification number: H01J41/20 , H01J29/94 , H01J41/16

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