Boehm, K. The British patent system:1.administration - Cambridge University Press London 1967 - x,184,tables - British patent system Patent systems = Boehm, K. Standard No.: M Standard Tech. Report. No.: LCCN: B Nat. Bib. No.: 1563 Nat. Bib. Agency Control No.: 608(420)BOE Subjects--Topical Terms: Engineering & Technology Universal Decimal Class. No.: 608(420)