Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
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17/00
Gas-filled discharge tubes with solid cathode
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H01J17/22
Means for obtaining or maintaining the desired pressure within the tube
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H01J17/26
Means for producing, introducing, or replenishing gas or vapour during operation of the tube
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