4. Hydraulic and earth engineering
  5. Fluid control, treatment, or containment
  6. Flow control

Ralph H. Hoyeck

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Air/water cranes

Static structures (e.g. – buildings) – Including component designed to receive a disparate article... – Mounted for movement
Patent

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One letter alphabet (OLA)

Education and demonstration – Language – Writing or printing by hand
Patent

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Perpetual blind calendars series 2

Printed matter – Calendar
Patent

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Self supporting flexible wall dams

Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent

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Profile ID: LFUS-PAI-P-104850

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