SECURITY CLAMP FOR THEFT PROTECTION OF TEXTILE OBJECTS AND THE LIKE
DE3337947A1
Access control system for a cash dispenser
DE3114801A1
Pressure sensor for monitoring open-air exhibition sites and spaces in a monitoring region which can be defined
DE2744241A1
Device for monitoring prodn errors in webs - has TV camera disposed above web with image line coinciding with error propagation and integrated line signal comparison
DE2551348A1
Antishoplifting resonant tag equipment - has perpendicular exciting and detecting coils to prevent interference from extraneous signals
DE2539035A1
Fastener for anti theft elements - has pin through unsold garment fixed by cross slit leaf spring
DE2539043A1
Radio detection system protecting shop wares - has transmitter in supervised zone behind cash desk and tuned circuit on object removed by key on purchase
DE2533911A1
Floor bolting system for sliding doors - has photoelectric locking arrangement for improving stability of locking system
DE2524226A1
Pressure sensitive alarm with detection of disturbance effect - has high pass filter detecting disturbance to prevent triggering of alarm
DE2524220A1
Detector for penetration of object in limited monitoring zone - with readily displaceable electrode, for protecting windows against house breakers
DE2454255A1
Shoplifting preventing device - has an energy radiating transmitter in the monitored zone and a device to the protected object
DE2454254B1
Circuit arrangement for monitoring lines for short circuits and interruptions
DE2361527A1
Security system for strong rooms - has electric door lock with time lag element
DE2361590A1
Anti-theft security for changing cubicles in shops - contains warning system, to emit signals
DE2361550A1
Cash register data collection, storage and processing - utilises the input values without further manually operated intermediate transfers
DE2339359A1
Check-out counter monitor - uses closed cct TV for serial check-outs esp. in department stores
DE2335404A1
Alarm system control unit - is used with sense loop and detects short-circuiting open-circuiting or earthing of loop
CA1018264A
Method for detecting the entry of objects into a rectricted area
GB1246058A
An apparatus using a television camera for intimidation and/or monitoring
