Patent for inventions and the protection of industrial designs
Blanco White, T A
Patent for inventions and the protection of industrial designs - 4th ed. - London Stevens 1974 - lxvii, 749 p.
346.0486 B59P(4)
Patent for inventions and the protection of industrial designs - 4th ed. - London Stevens 1974 - lxvii, 749 p.
346.0486 B59P(4)
