1) Flat 2) Flatcar 3) Freight car 4) Heavy-machinery carrier 5) Kind of trailer 6) Kind of truck 7) Open truck 8) Open-sided trailer 9) Popular truck type 10) Scanner variety 11) Sideless trailer 12) Tow truck type 13) Truck type 14) Truck used for hauling 15) Type of truck Found on https://www.crosswordclues.com/clue/flatbed
(from the article `motion-picture technology`) ...a vertical device with one or more sound heads and a small viewplate that preserves much of the image brightness without damaging the film. Many ... Found on http://www.britannica.com/eb/a-z/f/35
An editing machine resembling a desk with a screen in the middle. The film sits flat on plates which are threaded through the center section that has transports for picture and sound Found on https://www.encyclo.co.uk/local/21112