Abstract: There is described a misfuelling prevention assembly (1) which comprises a fuel filler cap (2), said cap being provided with a releasable locking member (11) and locking member release means (6, 7) wherein the release means is actuated by the positioning of the correct fuel filler nozzle within the release means.

Abstract: Drawing apparatus for the preparation of technical drawings has a support for a drawing board on which paper may be attached. The support defines a frame surrounding the board which frame includes an upstanding lip for engagement by drawing instruments. Front, rear and side walls depend downwardly from the frame, and flare outwardly somewhat so that a series of apparatuses may be stacked for storage, with one nested partially within another. The lower edge of each side wall defines shoulders arranged so that the drawing surface may be disposed at one of three different angles to the horizontal when placed on a support surface, with that surface engaging different parts of the side walls. The frame may include an open-topped recess for holding drawing instruments, which recess will be closed by the next apparatus up, in a stack of such apparatus.