4. Beds
  5. Sofa bed
  6. Reverting back

Frederick W. Grantham

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Automatic article sorting apparatus

Classifying – separating – and assorting solids – Adhesion – Coated surface or mass
Patent

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Automatic cleaning apparatus

Textiles: fluid treating apparatus – Machines – With successive fluids and plural tubs
Patent

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Automatic moisture controller with stack sensor

Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent

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Continuous laundry drying apparatus

Heating – Tumbler-type rotary - drum furnace – Having combustion products generated in or fed to drum
Patent

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Convertible hospital bed

Beds – Sofa bed – Reverting back
Patent

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Profile ID: LFUS-PAI-P-571412

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