pointing device used point out graph white board

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Pointing device used to point out at a graph on a white board Royalty Free Stock Photo
Pointing device used to point out at a graph on a white board Royalty Free Stock Photo
   
   
   
   
   
Pointing device used to point out at a graph on a white board
   
   
   
   
   
   
   
Photograph of a person using pointing device or pen to point on the white screen with a graph or seismograph in black colour

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