| http://www.w3.org/ns/prov#value | - A further modification of the present invention is illustratedin Fig. 12 of the drawings in which it will be noted that a plurality-of sheets or strips 29 of cellulosic material having an adsorbent such as bauxite or similar material incorporated therein, are inserted between certain of the adjacent stretches |26 of the folded web of cellulosic material.
|
