22,453. Greenberg, M. Nov. 7. Battledores or racquets for playing ping-pong &c. are made of celluloid. The playing faces a, bare formed around stiffening - b a n d s, the edges a<1>, b<1> being bent at right - angles a n d secured together by plastic celluloid. An outer band c encircles the edge, and a suitable handle is affixed.