Invention Grant
- Patent Title: Electron discharge apparatus
- Patent Title (中): 电子放电装置
-
Application No.: US39824929Application Date: 1929-10-08
-
Publication No.: US1889595APublication Date: 1932-11-29
- Inventor: DE WALT KENNETH C
- Applicant: GEN ELECTRIC
- Assignee: Gen Electric
- Current Assignee: Gen Electric
- Priority: US39824929 1929-10-08
- Main IPC: H01J25/52
- IPC: H01J25/52
Information query
