ข้อมูลhaving grid-like image screen through which the electron ray or beam passes and by which the ray or beam is influenced before striking the luminescent output screen, i.e. having "triode action"


เวอร์ชั่นข้อมูล

เวอร์ชั่น รหัส / code คำอธิบาย / code name เครื่องมือ
1 H01J0031520000 having grid-like image screen through which the electron ray or beam passes and by which the ray or beam is influenced before striking the luminescent output screen, i.e. having "triode action" 29/09/2562