Download
slide1 n.
Skip this Video
Loading SlideShow in 5 Seconds..
PEN PowerPoint Presentation

PEN

201 Vues Download Presentation
Télécharger la présentation

PEN

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. agriculture plastic raw materials felt Greeks/Romans writing papyrus rubber paper culture PEN wood trees liquid inventions Fountain Pigments/dyes Waterman pencil Ballpoint ink vials ink mining Conte Reynolds WWII metal feathers graphite lead clay marketing quills