% NOR-gate EAST
\newsavebox{\nore}
\savebox{\nore}(12,6){
\begin{picture}(12,6)
\bezier{60}(2,6)(7,6)(9,3)     % top section of pointed curve
\bezier{60}(2,0)(7,0)(9,3)     % bottom section of pointed curve
\bezier{50}(2,6)(4,3)(2,0)     % back curve
\put(10.5,3){\line(1,0){1.5}}  % output line
\put(9.75,3){\circle{1.5}}     % bobble
\put(0,5){\line(1,0){2.5}}     % top input line
\put(0,1){\line(1,0){2.5}}     % bottom input line
% NB intersection of input lines & back curve is estimated (not calculated)!
\end{picture}
}