Security bolt for a housing cover, camera cassette and camera using such a bolt
EP0074674A1
Safety logic circuits, particularly usable in railway signalling
EP0068572A1
Synchronizing device, in particular for a pulse radar display unit
EP0036234A1
Automatic sector scan control system for an in both directions rotated main shaft out of a predetermined angular position which is fixed in the course of time
EP0021529A1
Cinematographic view-taking or projection apparatus comprising an anti-jam device
EP0015630A1
Security bolt mechanism for a camera cassette and camera and/or cassette incorporating such a mechanism
GB992501A
Improvements in or relating to radar systems
GB864404A
Improvements in or relating to methods of and apparatus for removing entrained impurities from gaseous fluids
