System for managing a panel of objects such as keys
EP0052043A1
Coin-ejecting retaining and accepting mechanism
DK236381A
Delivery automatic with related cassette and management plant
EP0023181A1
Apparatus for the automatic registration of the cost of a telephone call and associated telephone exchange
EP0004497A1
Apparatus for analysing the traffic of public telephones and remote supervision installation for analysing the traffic of public telephones served by a plurality of telephone exchanges
FR2284256A7
Telephone handset incorporating mercury switch - cuts off mmicrophoe when instrument is held at given angle
