an interior door that opens by folding back in sections (rather than by swinging on hinges)

an interior door that opens by folding back in sections (rather than by swinging on hinges)

an interior door that opens by folding back in sections (rather than by swinging on hinges)

an interior door that opens by folding back in sections (rather than by swinging on hinges)

an interior door that opens by folding back in sections (rather than by swinging on hinges)

an interior door that opens by folding back in sections (rather than by swinging on hinges)

a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver

a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver

a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver

a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver