PROCESS FOR INACTIVATING INDUSTRIAL WASTES OF CHRYSOTILE ASBESTOS Application EP-0344563-A3 European Patent Office 04 Jul 1990
Process for inactivating industrial wastes of chrysotile asbestos Application EP-0344563-A2 European Patent Office 06 Dec 1989
Method of inactivating chrysotile asbestos industrial waste materials Application FR-2631950-A1 France 01 Dec 1989