21.   The recently patented system consists of a transmitter in the bus and a receiver attached to a bus stop warning sign.

22.   The system consists of a video screen, a computer and a data base of maps and other travel information like listings of hotels and restaurants.

23.   The systems usually consist of a couple of panels, about five feet long, mounted toward the maximum sun exposure on rooftops next to a water tank.

24.   The system will consist of a compression system for audio and video data.

25.   The three-piece system consists of a beach-ball subwoofer and a pair of nine-inch desk speakers, all in clear plastic.

26.   The system consists a small pipe inside a large pipe, with a ring-shaped gap in between.

27.   The system consists of electronic devices that are passed out to guests, who then enter the amounts of their gifts and their credit-card numbers.

28.   The system consists of servers connected to a hub.

29.   The ventilation system consisted of a fan on the east side of the shed, where fumes escaped into the open air.

30.   This basic system consists of a keyboard, the computer itself and a monitor.