Invention Grant
- Patent Title: Anode spacer
- Patent Title (中): 阳极间隔
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Application No.: US73443524Application Date: 1924-08-27
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Publication No.: US1661589APublication Date: 1928-03-06
- Inventor: WINNINGHOFF WILFORD J
- Applicant: COOPER HEWITT ELECTRIC CO
- Assignee: Cooper Hewitt Electric Co
- Current Assignee: Cooper Hewitt Electric Co
- Priority: US73443524 1924-08-27
- Main IPC: H01J13/14
- IPC: H01J13/14 ; H01J61/30
Information query
