6In paragraph (a) of Group 18 (which comprises certain wireless receiving sets, kits of parts for the assembly of such sets and valves for use therewith), for the word " First" in the second column there shall be substituted the word " Second ".
6In paragraph (a) of Group 18 (which comprises certain wireless receiving sets, kits of parts for the assembly of such sets and valves for use therewith), for the word " First" in the second column there shall be substituted the word " Second ".