4. Acoustics
  5. Auditorium

William M. Betts

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Device for holding flexible bags

Supports – Bag holders – Stands
Patent

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Method for making can end and tab stock

Metal treatment – Process of modifying or maintaining internal physical... – With casting or solidifying from melt
Patent

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Mud flap anti-sail bracket

Land vehicles – Wheeled – Attachment
Patent

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Silencing device for internal combustion engines

Acoustics – Auditorium
Patent

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Profile ID: LFUS-PAI-P-339071

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