Invention Grant
- Patent Title: Thermionic tube
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Application No.: US15054626Application Date: 1926-11-24
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Publication No.: US1889449APublication Date: 1932-11-29
- Inventor: MCCULLOUGH FREDERICK S
- Applicant: MCCULLOUGH FREDERICK S
- Assignee: Frederick S Mccullough
- Current Assignee: Frederick S Mccullough
- Priority: US15054626 1926-11-24
- Main IPC: H01J21/02
- IPC: H01J21/02
Public/Granted literature
- US10436814B2 Systems and methods for manufacturing nano-electro-mechanical-system probes Public/Granted day:2019-10-08
Information query
