Invention Grant
- Patent Title: Electron discharge device
-
Application No.: US57250645Application Date: 1945-01-12
-
Publication No.: US2457891APublication Date: 1949-01-04
- Inventor: HENNINGER ANDREW F , HENNINGER GEORGE D , REITHERMAN RALPH W
- Applicant: ANDREW F HENNINGER , GEORGE D HENNINGER
- Assignee: Andrew F Henninger,George D Henninger
- Current Assignee: Andrew F Henninger,George D Henninger
- Priority: US57250645 1945-01-12
- Main IPC: H01J17/44
- IPC: H01J17/44
Information query
