4. Fire escape, ladder, or scaffold
  5. Platform with elevating or lowering means

Powell L. Sprunger

Inventor

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Charge imaging system for a printing press

Printing – Planographic – Lithographic plate making – and processes of making or using...
Patent

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Device for making and warming coffee by a microwave heating devi

Electric heating – Metal heating – Of cylinders
Patent

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Disposable trailer hitch

Land vehicles – Wheeled – Articulated vehicle
Patent

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Electric ladder

Fire escape – ladder – or scaffold – Platform with elevating or lowering means
Patent

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Expandable and reversible containers

Envelopes – wrappers – and paperboard boxes – Paperboard box – Tubes – cylindrical
Patent

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Profile ID: LFUS-PAI-P-259873

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