4. Optics: motion pictures
  5. With support

David C. Wheeler

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AC power supply

Electric heating – Metal heating – By arc
Patent

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Air cooled light fixture with baffled flow through a filter arra

Illumination – Light source and modifier – Plural serial lens elements or components
Patent

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Cup lid apparatus

Receptacles – Closures – Combined or convertible
Reexamination Certificate

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Filter changing mechanism for a video camera

Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent

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Lighter-than-air apparatus and method of utilizing same

Aeronautics and astronautics – Aircraft – lighter-than-air – Balloons
Patent

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Profile ID: LFUS-PAI-P-900733

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