Megarry J said; ‘Copyright is concerned not with any originality of ideas but with their form of expression, and it is in that expression that originality is requisite. That expression need not be original or novel in form, but it must originate with the author and not be copied from another work . . A drawing which is simply traced from another drawing is not an original artistic work: a drawing which is made without any copying from anything originates with the artist.’
 RPC 57
England and Wales
Cited – Interlego AG v Tyco Industries Inc PC 5-May-1988
How much new material for new copyright
(Hong Kong) Toy building bricks were manufactured by Lego in accordance with engineering drawings made for that purpose. One issue was whether new drawings made since 1972, altering the original drawings in various minor respects but added new . .
Lists of cited by and citing cases may be incomplete.
Updated: 03 September 2021; Ref: scu.667570