FILAMENTO INCADESCENTE A SPIRALATURA TRIPLA
This invention relates to multiple coiled incandescent filaments and more particularly to a single strand filament wire, coreless, triple-coil filament for an incandescent lamp having mandrel ratios in either or both its second or third coiling less than 1.0.
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| Hauptverfasser: | , |
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| Format: | Patent |
| Sprache: | ita |
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| Zusammenfassung: | This invention relates to multiple coiled incandescent filaments and more particularly to a single strand filament wire, coreless, triple-coil filament for an incandescent lamp having mandrel ratios in either or both its second or third coiling less than 1.0. |
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