ELECTRIC BULB
PROBLEM TO BE SOLVED: To provide a further miniaturized electric bulb with a double-wound filament. SOLUTION: The electric bulb 1 has a bulb 3 and the double-wound filament 2 stored in the bulb 3. In the electric bulb, the double-wound filament 2 consists of a filament material 2' as the core a...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a further miniaturized electric bulb with a double-wound filament. SOLUTION: The electric bulb 1 has a bulb 3 and the double-wound filament 2 stored in the bulb 3. In the electric bulb, the double-wound filament 2 consists of a filament material 2' as the core and another filament material 2", whose diameter is smaller than that of the filament material 2', wound around the filament material 2'. |
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