| http://www.w3.org/ns/prov#value | - ned in accordance with the present invention;FIG. 7 is a greatly enlarged fragmentary perspective view of a wire which is used in a screen such as shown in FIG. 6 or in the upper screen of FIG. 1 as it is manufactured and before it has been toughened in accordance with the teaching of thepresent invention;FIG. 8 is a fragmentary schematic cross sectional view taken substantially along line 8--8 of
|
