Carbonless copying material with increased stability - contains acceptor mixt. of hydroxy-benzophenone cpd. or penta:hydroxy-flavone and benzotriazole cpd.
DE3009806A1
Carbonless copying material with increased stability - contains acceptor mixt. of hydroxy-benzophenone cpd. or penta:hydroxy-flavone and benzotriazole cpd.
GB1270372A
Machine for winding tape-like strip onto reels
DE1253547B
Shrink drum for the production of paper, film or the like. Windings with turns of the same length
