Patent search ap:("NAT VIDEO CORP") AND inv:"GELFAND BENJAMIN L" Page 1

1.

发明授权
Asymmetric pole pieces for color kinescope convergence cage 失效
Title translation: 不对称的色块用于色彩鲜明的融合笼

公开(公告)号：US3525892A

公开(公告)日：1970-08-25

申请号：US3525892D

申请日：1968-10-22

Applicant: NAT VIDEO CORP

Inventor： JAVORIK LASZLO , ROKOS GEORGE A , GELFAND BENJAMIN L

IPC: H01J29/70 , H01J29/54 , H01J29/72

CPC classification number: H01J29/702

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