Invention Grant
- Patent Title: Demountable screen grid tube
- Patent Title (中): 可拆卸的网格管
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Application No.: US66653733Application Date: 1933-04-17
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Publication No.: US1990482APublication Date: 1935-02-12
- Inventor: GEBHARD LOUIS A
- Applicant: GEBHARD LOUIS A
- Assignee: Louis A Gebhard
- Current Assignee: Louis A Gebhard
- Priority: US66653733 1933-04-17
- Main IPC: H01J9/50
- IPC: H01J9/50
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