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1.发明授权Method of making grids for electron discharge tubes and a grid made by said method 失效制造电子放电管栅格的方法和由所述方法制成的栅格
公开(公告)号：US3045713A
公开(公告)日：1962-07-24
申请号：US72713658
申请日：1958-04-08
Applicant: PHILIPS CORP
Inventor： JOHANNES CLEVEN ANTOON
IPC: H01J19/00
CPC classification number: H01J19/00 , H01J2893/0025 , Y10T225/16
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