Item:Q19406: Difference between revisions
Created a new Item: gas-filled tube, arrangement of electrodes in a gas within an insulating, temperature-resistant envelope |
Created claim: has use (P29): gas-discharge lamp (Q19407) |
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| Property / subclass of | |||
| Property / subclass of: vacuum tube / rank | |||
Normal rank | |||
| Property / has use | |||
| Property / has use: gas-discharge lamp / rank | |||
Normal rank | |||