Process and device for the nonpolluting mass deacidification of books and other printing and paper products with the predrying of these products by high-frequency radiation in a vacuum, then the application of a neutralization treatment with solutions for deacidification and the subsequent drying of...http://www.google.es/patents/US5120500?utm_source=gb-gplus-sharePatente US5120500 - Process and device for nonpolluting mass deacidification of books and other paper products
Process and device for nonpolluting mass deacidification of books and other ...
