Richard A. Wintercorn

Examiner

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Acoustic energy systems

Stock material or miscellaneous articles – Sheet including cover or casing – Filled with gas other than air; or under vacuum
Patent

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Acoustical panel for suspended ceilings

Acoustics – Sound-modifying means – Space absorbers
Patent

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Adapter for photographic enlarger and method of attaching same

Photocopying – Projection printing and copying cameras – Illumination systems or details
Patent

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Additive tri-color lamphouse for a photographic printer

Photocopying – Projection printing and copying cameras – Multicolor picture
Patent

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Adjustable stringed instrument mute

Music – Accessories
Patent

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Profile ID: LFUS-PAI-P-11592

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