OCR Text |
Show Manufacture of Dye Stuffs. One of th- principal Industries of Basel Is tho .nanufacturo of dye-stuffs chiefly from coal-tar products and chemicals. New discoveries aro constantly con-stantly being mado by th" employes of tho Basel factories. t Tho extent of the Hold In which thoy labor may bo judged from tho fact that there now exist no les than 25,000 patents for the single crrles of socplled azo colors, col-ors, which tP"nrotlcally aro capable of becoming 3,1''000. Tho patents mentioned men-tioned arc all granted by foreign governments, gov-ernments, slnoo tho Swiss lawgivers havo up to this time refined to patent nnythlng but what can !)- represented materially things, not processes. |