4. Illumination
  5. Photographic lighting
  6. Light responsive

Gary L. Houseknecht

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Photoflash array humidity protected switches

Combustion – Illuminating flash device – e.g. – photographic bulb – etc. – Fuel charge within sealed transparent casing – e.g. – bulb
Patent

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Radiation switch for photoflash unit

Illumination – Photographic lighting – Light responsive
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Tungsten-halogen lamp with variably positionable getter

Electric lamp and discharge devices – With getter – Incandescent lamp type
Patent

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Profile ID: LFUS-PAI-P-877104

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