A procedure for the preparation of a filtering material. (Machine-translation by Google Translate, not legally binding)
EG14427A
Filter material and a method of manufacturing and using the same
ES477883A1
Filter material and a method of manufacturing and using the same
SE7812935L
A filter material for purification of at least one essentially gaseous medium from at least one pre determined substance, filter as well as usage of the filter material
FI783678A
Filter material
ES412805A1
Method for manufacturing filter for removing cadmium and cadmium compounds from gas and particularly intended for cigarettes
