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history of projector screen

Discussion in 'General Electronics Discussion' started by dortmund, May 20, 2011.

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  1. dortmund

    dortmund

    5
    0
    May 5, 2011
    Pls I need a brief history on motorized projector screen. I also need some text book references.
     
  2. davenn

    davenn Moderator

    13,812
    1,945
    Sep 5, 2009
    hi there

    generally we dont do histories brief or otherwise ;) what did google tell you about their development ? There's sure to be something in wikipedia with references.

    repairs are a different story

    cheers
    Dave
     
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