Patent search ap:("TUNG SOL LAMP WORKS INC") AND inv:"LACKEY JAMES A" Page 1

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发明授权
Apparauts for making grids 失效
Title translation: Apparauts做网格

公开(公告)号：US2188906A

公开(公告)日：1940-02-06

申请号：US18981338

申请日：1938-02-10

Applicant: TUNG SOL LAMP WORKS INC

Inventor： LACKEY JAMES A

IPC: H01J19/00

CPC classification number: H01J19/00 , H01J2893/0026 , Y10T29/5187

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