Abstract: A container, especially a paper board container, for cigarettes includes an open ended rectangular casing member and a rectangular, tubular drawer member adapted to be slidably received in the casing member; cooperating means on the drawer and casing members limit sliding movement of the drawer member out of the casing member.

Abstract: An electron multiplier device formed of the combination of a support made of high temperature-resisting electrically-insulating ceramic material and of a layer of secondary electron emitting semi-conducting glass material fused to the inner wall of the ceramic material and method of making; the multiplier device is further characterized in that the ceramic material and the glass material have substantially the same coefficient of expansion. The device is made by pouring molten semi-conducting glass into at least one channel in a ceramic support having a higher fusion point than that of the glass and the same coefficient of expansion, flowing the glass under pressure through the channel and cooling to leave a semi-conductor wall to the channel.

Abstract: The ion-electron source described herein comprises an electron multiplier consisting of a straight tubular channel that includes an emitting region for the production of secondary electrons by ion impact, the channel being narrowed near one of its extremities; an inlet is provided by which gas at a predetermined pressure can be introduced in the channel multiplier; a sufficient voltage polarization allows the multiplier to operate in a self-sustained cascade mode; the source also includes an aperture by which ion current is ejected.