首页>
外国专利>
Re-usable copying medium, e.g. for overhead projection, has base with coating containing water-swellable synthetic resin on one side and functional layer, e.g. to regulate friction or reduce cockling, on back
Re-usable copying medium, e.g. for overhead projection, has base with coating containing water-swellable synthetic resin on one side and functional layer, e.g. to regulate friction or reduce cockling, on back
Re-usable copying medium has a base with (A) a coating containing a synthetic resin swelling in water on one side and (B) a functional layer with a different function on the other side.
展开▼
