4. Valves and valve actuation
  5. With material guide or restrictor

Donald S. Holland, Esq.

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Adjustable opening X-ray mask

X-ray or gamma ray systems or devices – Beam control – Collimator
Patent

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Air mixer with water separator

Gas separation: processes – Deflecting – Centrifugal force
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Alternating lobed mixer/ejector concept suppressor

Power plants – Reaction motor – Air passage bypasses combustion chamber
Patent

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Apparatus for automatic layout and cutting corner lines in stone

Stone working – Sawing
Patent

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Basketball bank

Miscellaneous – Vault – safe – or depository – Coin holder or bank
Patent

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