Invention Grant
- Patent Title: Process of coating thermionic cathodes
- Patent Title (中): 热电阴极涂层工艺
-
Application No.: US23687527Application Date: 1927-11-30
-
Publication No.: US1809095APublication Date: 1931-06-09
- Inventor: WILSON JAMES R , BLACKBURN CHARLES M
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US23687527 1927-11-30
- Main IPC: H01J9/04
- IPC: H01J9/04
Information query
