4. Illumination
  5. Light source and modifier
  6. Adjustable or repositionable modifier

John W. Wustenberg

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Cylinder head bolt plug

Internal-combustion engines – Particular piston and enclosing cylinder construction – Cylinder head
Patent

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Louvered light control

Illumination – Light source and modifier – Adjustable or repositionable modifier
Patent

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Method and apparatus for teaching reading

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
Patent

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Muffler for air operated hand tools and other pneumatic devices

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Profile ID: LFUS-PAI-P-108898

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