Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB25673/23A
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Individual
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Individual
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Publication date
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Publication of GB205512ApublicationCriticalpatent/GB205512A/en
205,512. PÚri, F. Oct. 7, 1922, [Convention date]. Vacuum tubes.-The electrodes of a valve are mounted on metal tubes 8 fastened at one end to the electrodes and fitting at the other end over conductors fused into the foot. The grid 7 may consist of two wires twisted together to form loops which are bent zig-zag fashion. The filament support may be protected against discharge by quartz or other insulating material.
GB25673/23A1922-10-071923-01-05Improvements in vacuum tubes of the "audion" type
ExpiredGB205512A
(en)